diff --git a/detection/src/main/java/com/njcn/gather/detection/service/impl/DetectionServiceImpl.java b/detection/src/main/java/com/njcn/gather/detection/service/impl/DetectionServiceImpl.java
index d688fe6c..01152ca4 100644
--- a/detection/src/main/java/com/njcn/gather/detection/service/impl/DetectionServiceImpl.java
+++ b/detection/src/main/java/com/njcn/gather/detection/service/impl/DetectionServiceImpl.java
@@ -23,6 +23,8 @@ import com.njcn.gather.script.service.IPqScriptCheckDataService;
 import com.njcn.gather.storage.pojo.po.AdHarmonicResult;
 import com.njcn.gather.storage.pojo.po.AdNonHarmonicResult;
 import com.njcn.gather.storage.service.DetectionDataDealService;
+import com.njcn.gather.system.cfg.pojo.po.SysTestConfig;
+import com.njcn.gather.system.cfg.service.ISysTestConfigService;
 import com.njcn.gather.system.dictionary.pojo.enums.DictDataEnum;
 import lombok.RequiredArgsConstructor;
 import org.apache.commons.collections4.CollectionUtils;
@@ -50,6 +52,7 @@ public class DetectionServiceImpl {
     private final IPqErrSysDtlsService pqErrSysDtlsService;
     private final IPqScriptCheckDataService pqScriptCheckDataService;
     private final DetectionDataDealService detectionDataDealService;
+    private final ISysTestConfigService sysTestConfigService;
 
     private final String TYPE_A = "A";
     private final String TYPE_B = "B";
@@ -976,7 +979,10 @@ public class DetectionServiceImpl {
                 data.setIsData(isQualified);
                 data.setNum(harm);
                 if (CollUtil.isNotEmpty(harmDataList)) {
-                    data.setData(harmDataList.get(0));
+                    SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
+                    BigDecimal bd = BigDecimal.valueOf(harmDataList.get(0));
+                    bd = bd.setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
+                    data.setData(bd.doubleValue());
                 }
                 Double channelData = issueHarmMap.get(harm);
                 data.setResultData(channelData);
@@ -1007,12 +1013,13 @@ public class DetectionServiceImpl {
     private void setDetection(DictDataEnum dataRule, List<Double> harmDataList, PqErrSysDtls errSysDtl, DetectionData data, Double channelData, Double ratedValue) {
         if (CollUtil.isNotEmpty(harmDataList)) {
             // 存放合格的数据
+            SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
             List<Double> qualifiedList = harmDataList.stream()
-                    .filter(x -> channelData == 0 ? NumberUtil.isIn(devSubtractChannelData(x, channelData, ratedValue, errSysDtl),
+                    .filter(x -> channelData == 0 ? NumberUtil.isIn(devSubtractChannelData(x, channelData, ratedValue, errSysDtl, oneConfig.getScale()),
                             BigDecimal.valueOf(-errSysDtl.getMaxErrorValue()),
                             BigDecimal.valueOf(errSysDtl.getMaxErrorValue()))
                             :
-                            x != 0 && NumberUtil.isIn(devSubtractChannelData(x, channelData, ratedValue, errSysDtl),
+                            x != 0 && NumberUtil.isIn(devSubtractChannelData(x, channelData, ratedValue, errSysDtl, oneConfig.getScale()),
                                     BigDecimal.valueOf(-errSysDtl.getMaxErrorValue()),
                                     BigDecimal.valueOf(errSysDtl.getMaxErrorValue()))).collect(Collectors.toList());
             if (CollUtil.isNotEmpty(qualifiedList)) {
@@ -1020,21 +1027,23 @@ public class DetectionServiceImpl {
                     case AT_WILL_VALUE:
                     case CP95_VALUE:
                     case AVG_VALUE:
-                        data.setErrorData(devSubtractChannelData(qualifiedList.get(0), channelData, ratedValue, errSysDtl));
+                        data.setErrorData(devSubtractChannelData(qualifiedList.get(0), channelData, ratedValue, errSysDtl, oneConfig.getScale()));
                         break;
                     case SECTION_VALUE:
                     case Own_value:
                         if (qualifiedList.size() == harmDataList.size()) {
-                            data.setErrorData(devSubtractChannelData(qualifiedList.get(0), channelData, ratedValue, errSysDtl));
+                            data.setErrorData(devSubtractChannelData(qualifiedList.get(0), channelData, ratedValue, errSysDtl, oneConfig.getScale()));
                         } else {
                             List<Double> subtract = CollectionUtils.subtract(harmDataList, qualifiedList).stream().collect(Collectors.toList());
-                            data.setData(subtract.get(0));
-                            data.setErrorData(devSubtractChannelData(subtract.get(0), channelData, ratedValue, errSysDtl));
+                            BigDecimal bd = BigDecimal.valueOf(subtract.get(0));
+                            bd = bd.setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
+                            data.setData(bd.doubleValue());
+                            data.setErrorData(devSubtractChannelData(subtract.get(0), channelData, ratedValue, errSysDtl, oneConfig.getScale()));
                         }
                         break;
                 }
             } else {
-                data.setErrorData(devSubtractChannelData(harmDataList.get(0), channelData, ratedValue, errSysDtl));
+                data.setErrorData(devSubtractChannelData(harmDataList.get(0), channelData, ratedValue, errSysDtl, oneConfig.getScale()));
             }
             isData(dataRule, harmDataList, data, qualifiedList);
         }
@@ -1042,7 +1051,10 @@ public class DetectionServiceImpl {
 
     private void isData(DictDataEnum dataRule, List<Double> harmDataList, DetectionData data, List<Double> qualifiedList) {
         if (CollUtil.isNotEmpty(qualifiedList)) {
-            data.setData(qualifiedList.get(0));
+            SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
+            BigDecimal bd = BigDecimal.valueOf(qualifiedList.get(0));
+            bd = bd.setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
+            data.setData(bd.doubleValue());
             switch (dataRule) {
                 case AT_WILL_VALUE:
                 case CP95_VALUE:
@@ -1059,7 +1071,9 @@ public class DetectionServiceImpl {
                         data.setIsData(1);
                     } else {
                         List<Double> subtract = CollectionUtils.subtract(harmDataList, qualifiedList).stream().collect(Collectors.toList());
-                        data.setData(subtract.get(0));
+                        bd = BigDecimal.valueOf(subtract.get(0));
+                        bd = bd.setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
+                        data.setData(bd.doubleValue());
                         data.setIsData(2);
                     }
                     break;
@@ -1171,7 +1185,10 @@ public class DetectionServiceImpl {
         DetectionData detectionData = new DetectionData();
         detectionData.setIsData(isQualified);
         if (CollUtil.isNotEmpty(list)) {
-            detectionData.setData(list.get(0));
+            SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
+            BigDecimal bd = BigDecimal.valueOf(list.get(0));
+            bd = bd.setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
+            detectionData.setData(bd.doubleValue());
             detectionData.setResultData(channelData);
             //先根据源所下发的数据，是否在误差体系范围内在则可以进行误差体系判断
             //获得误差体系
@@ -1195,7 +1212,10 @@ public class DetectionServiceImpl {
         DetectionData detectionData = new DetectionData();
         detectionData.setIsData(isQualified);
         if (CollUtil.isNotEmpty(list)) {
-            detectionData.setData(list.get(0));
+            SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
+            BigDecimal bd = BigDecimal.valueOf(list.get(0));
+            bd = bd.setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
+            detectionData.setData(bd.doubleValue());
             detectionData.setResultData(BigDecimal.valueOf(1.0 / data).doubleValue() * channelData);
 
             //先根据源所下发的数据，是否在误差体系范围内在则可以进行误差体系判断
@@ -1220,11 +1240,11 @@ public class DetectionServiceImpl {
                         ).collect(Collectors.toList());
                 if (CollUtil.isNotEmpty(qualifiedList)) {
                     BigDecimal subtract = BigDecimal.valueOf(qualifiedList.get(0))
-                            .subtract(BigDecimal.valueOf(1.0 / data * (channelData)));
+                            .subtract(BigDecimal.valueOf(1.0 / data * (channelData))).setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
                     detectionData.setErrorData(subtract);
                 } else {
                     BigDecimal subtract = BigDecimal.valueOf(list.get(0))
-                            .subtract(BigDecimal.valueOf(1.0 / data * (channelData)));
+                            .subtract(BigDecimal.valueOf(1.0 / data * (channelData))).setScale(oneConfig.getScale(), RoundingMode.HALF_UP);
                     detectionData.setErrorData(subtract);
                 }
                 isData(dataRule, list, detectionData, qualifiedList);
@@ -1282,23 +1302,24 @@ public class DetectionServiceImpl {
      * @param channelData 通道值
      * @param ratedValue  额定值
      * @param error
+     * @param scale       小数点位数
      * @return
      */
-    public BigDecimal devSubtractChannelData(Double devData, Double channelData, Double ratedValue, PqErrSysDtls error) {
+    public BigDecimal devSubtractChannelData(Double devData, Double channelData, Double ratedValue, PqErrSysDtls error, Integer scale) {
         //计算装置值返回值 - 源下发值的数据 = 差值
-        BigDecimal subtract = BigDecimal.valueOf(devData).subtract(BigDecimal.valueOf(channelData));
+        BigDecimal subtract = BigDecimal.valueOf(devData).setScale(scale, RoundingMode.HALF_UP).subtract(BigDecimal.valueOf(channelData));
         //只有相对值需要%比较，绝对值直接相减就行
         if (2 == error.getValueType()) {
             switch (error.getErrorValueType()) {
                 case 0:
                     //下发的谐波电压幅值，返回的是谐波电压含有率，拿（含有率值*基波 - 源下发对应谐波值幅值）/ 额定值
                     return subtract.multiply(BigDecimal.valueOf(100))
-                            .divide(BigDecimal.valueOf(ratedValue), 4, RoundingMode.HALF_UP);
+                            .divide(BigDecimal.valueOf(ratedValue), scale, RoundingMode.HALF_UP);
                 case 1:
                     //todo 当谐波电压和间谐波电压默认都是按照相对值误差进行计算（用户关心的是含有率）
                     //下发的谐波电压幅值，返回的是谐波电压含有率，拿（含有率值*基波 - 源下发对应谐波值幅值）/ 下发的幅值
                     return subtract.multiply(BigDecimal.valueOf(100))
-                            .divide(BigDecimal.valueOf(channelData), 4, RoundingMode.HALF_UP);
+                            .divide(BigDecimal.valueOf(channelData), scale, RoundingMode.HALF_UP);
             }
         }
         return subtract;
@@ -1314,14 +1335,15 @@ public class DetectionServiceImpl {
      * @return
      */
     public Double startRadiusEnd(Double value, Double ratedData, Double harmData, Integer type) {
+        SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
         if (ObjectUtil.isNotNull(value)) {
             switch (type) {
                 case 0:
                     return BigDecimal.valueOf(value).multiply(BigDecimal.valueOf(ratedData))
-                            .setScale(4, RoundingMode.HALF_UP).doubleValue();
+                            .setScale(oneConfig.getScale(), RoundingMode.HALF_UP).doubleValue();
                 case 1:
                     return BigDecimal.valueOf(value).multiply(BigDecimal.valueOf(harmData))
-                            .setScale(4, RoundingMode.HALF_UP).doubleValue();
+                            .setScale(oneConfig.getScale(), RoundingMode.HALF_UP).doubleValue();
                 default:
                     return value;
             }
@@ -1340,6 +1362,7 @@ public class DetectionServiceImpl {
      * @return
      */
     public Double maxErrorMultiply(PqErrSysDtls error, Double ratedData, Double harmData) {
+        SysTestConfig oneConfig = sysTestConfigService.getOneConfig();
         Double errorValue = error.getMaxErrorValue();
         //1绝对值
         if (1 == error.getValueType()) {
@@ -1347,11 +1370,11 @@ public class DetectionServiceImpl {
                 //绝对值-标称值= 最大误差值 * 额定电压
                 case 0:
                     return BigDecimal.valueOf(errorValue).multiply(BigDecimal.valueOf(ratedData))
-                            .setScale(4, RoundingMode.HALF_UP).doubleValue();
+                            .setScale(oneConfig.getScale(), RoundingMode.HALF_UP).doubleValue();
                 //绝对值-标准值 = 最大误差值 * 谐波下发值
                 case 1:
                     return BigDecimal.valueOf(errorValue).multiply(BigDecimal.valueOf(harmData))
-                            .setScale(4, RoundingMode.HALF_UP).doubleValue();
+                            .setScale(oneConfig.getScale(), RoundingMode.HALF_UP).doubleValue();
             }
         }
         //2相对值
@@ -1361,7 +1384,7 @@ public class DetectionServiceImpl {
                 case 0:
                 case 1:
                     return BigDecimal.valueOf(errorValue).multiply(BigDecimal.valueOf(100))
-                            .setScale(4, RoundingMode.HALF_UP).doubleValue();
+                            .setScale(oneConfig.getScale(), RoundingMode.HALF_UP).doubleValue();
             }
         }
         return errorValue;
diff --git a/system/src/main/java/com/njcn/gather/system/cfg/pojo/param/SysTestConfigParam.java b/system/src/main/java/com/njcn/gather/system/cfg/pojo/param/SysTestConfigParam.java
index fad2142d..f22ef846 100644
--- a/system/src/main/java/com/njcn/gather/system/cfg/pojo/param/SysTestConfigParam.java
+++ b/system/src/main/java/com/njcn/gather/system/cfg/pojo/param/SysTestConfigParam.java
@@ -24,6 +24,10 @@ public class SysTestConfigParam {
     @NotNull(message = SystemValidMessage.MAX_RECHECK_NOT_NULL)
     private Integer maxTime;
 
+    @ApiModelProperty(value = "数据精度")
+    @NotNull(message = SystemValidMessage.SCALE_NOT_NULL)
+    private Integer scale;
+
 //    @ApiModelProperty(value = "数据处理规则")
 //    @NotBlank(message = SystemValidMessage.DATA_RULE_NOT_BLANK)
 //    @Pattern(regexp = PatternRegex.SYSTEM_ID, message = SystemValidMessage.DATA_RULE_FORMAT_ERROR)
diff --git a/system/src/main/java/com/njcn/gather/system/cfg/pojo/po/SysTestConfig.java b/system/src/main/java/com/njcn/gather/system/cfg/pojo/po/SysTestConfig.java
index df0e9514..5853e4c9 100644
--- a/system/src/main/java/com/njcn/gather/system/cfg/pojo/po/SysTestConfig.java
+++ b/system/src/main/java/com/njcn/gather/system/cfg/pojo/po/SysTestConfig.java
@@ -46,6 +46,11 @@ public class SysTestConfig extends BaseEntity implements Serializable {
     @TableField("Scene")
     private String scene;
 
+    /**
+     * 小数点精度
+     */
+    private Integer scale;
+
 
     /**
      * 状态：0-删除 1-正常
diff --git a/system/src/main/java/com/njcn/gather/system/pojo/constant/SystemValidMessage.java b/system/src/main/java/com/njcn/gather/system/pojo/constant/SystemValidMessage.java
index 9b1c6fa3..517fe18f 100644
--- a/system/src/main/java/com/njcn/gather/system/pojo/constant/SystemValidMessage.java
+++ b/system/src/main/java/com/njcn/gather/system/pojo/constant/SystemValidMessage.java
@@ -91,4 +91,5 @@ public interface SystemValidMessage {
     String DICT_DATA_CODE_FORMAT_ERROR = "字典数据编码格式错误，只能包含字母、数字、中文、下划线、中划线、空格、点、斜线、反斜线、百分号、摄氏度符号，长度为1~30个字符";
     String DICT_PQ_OTHER_NAME_FORMAT_ERROR = "别名格式错误，只能包含字母、数字、中文、下划线、中划线、空格，长度最大为32个字符";
     String DICT_PQ_SHOW_NAME_FORMAT_ERROR = "显示名称格式错误，只能包含字母、数字、中文、下划线、中划线、空格，长度最大为32个字符";
+    String SCALE_NOT_NULL = "数据精度不能为空，请检查scale参数";
 }