diff --git a/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqDriverAutoConfiguration.java b/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqDriverAutoConfiguration.java
index 4dac641..63ee1b6 100644
--- a/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqDriverAutoConfiguration.java
+++ b/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqDriverAutoConfiguration.java
@@ -8,6 +8,7 @@ import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.redis.core.StringRedisTemplate;
@@ -16,17 +17,22 @@ import org.springframework.data.redis.core.StringRedisTemplate;
 @AutoConfigureBefore(MqCoreAutoConfiguration.class)
 @ConditionalOnClass(StringRedisTemplate.class)
 @ConditionalOnProperty(name = "mq.type", havingValue = "redis-stream")
+@EnableConfigurationProperties(RedisStreamMqProperties.class)
 public class RedisStreamMqDriverAutoConfiguration {
     @Bean
     @ConditionalOnMissingBean
-    public MqDriver mqDriver(StringRedisTemplate redis, StreamKeyBuilder streamKeyBuilder, RedisStreamProperties props) {
-        return new RedisStreamMqDriver(redis, streamKeyBuilder, props);
+    public MqDriver mqDriver(StringRedisTemplate redis, StreamKeyBuilder streamKeyBuilder,
+                             RedisStreamProperties props, RedisStreamMqProperties mqProps) {
+        // reclaim idle 从 mq.redis-stream.reclaim-min-idle 读取（默认 30s）。
+        return new RedisStreamMqDriver(redis, streamKeyBuilder, props, mqProps.getReclaimMinIdle().toMillis());
     }
 
     @Bean
     @ConditionalOnMissingBean
-    public MqIdempotentStore mqIdempotentStore(StringRedisTemplate redis) {
-        // 默认 TTL：processing 60s / success 300s / fail 300s，对齐 legacy 量级；统一前缀（修正 key 一致性）。
-        return new RedisMqIdempotentStore(redis, "mq:idem:", 60, 300, 300);
+    public MqIdempotentStore mqIdempotentStore(StringRedisTemplate redis, RedisStreamMqProperties mqProps) {
+        // TTL / 前缀从 mq.redis-stream.idempotent.* 读取（默认 processing 60s / success 300s / fail 300s，前缀 mq:idem:）。
+        RedisStreamMqProperties.Idempotent idem = mqProps.getIdempotent();
+        return new RedisMqIdempotentStore(redis, idem.getKeyPrefix(),
+                idem.getProcessingTtl().getSeconds(), idem.getSuccessTtl().getSeconds(), idem.getFailTtl().getSeconds());
     }
 }
diff --git a/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqProperties.java b/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqProperties.java
new file mode 100644
index 0000000..cd780ef
--- /dev/null
+++ b/mq-starter-redis-stream/src/main/java/com/njcn/mq/driver/redis/RedisStreamMqProperties.java
@@ -0,0 +1,48 @@
+package com.njcn.mq.driver.redis;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+import java.time.Duration;
+
+/**
+ * Redis Stream 驱动运行参数(前缀 {@code mq.redis-stream})。
+ *
+ * <p>把原先硬编码在 autoconfig 里的 reclaim idle 与去重 TTL 暴露为可配置项,便于按业务的
+ * 单条处理时延调整,而无需改源码。<b>默认值与历史硬编码保持一致</b>,不改变现有行为。
+ *
+ * <pre>
+ * mq:
+ *   redis-stream:
+ *     reclaim-min-idle: 30s        # 未 ACK 超过此时长才 reclaim 重投(须 &gt; 单条处理时延)
+ *     idempotent:
+ *       key-prefix: "mq:idem:"
+ *       processing-ttl: 60s        # 建议 &gt; 单条处理时延,且 &lt; reclaim-min-idle 更稳
+ *       success-ttl: 300s
+ *       fail-ttl: 300s
+ * </pre>
+ */
+@Data
+@ConfigurationProperties(prefix = "mq.redis-stream")
+public class RedisStreamMqProperties {
+
+    /**
+     * PEL reclaim 触发的最小 idle:消息投递后未 ACK 超过此时长才会被 reclaim 重投。
+     * 须大于单条业务的正常处理时延,避免仍在处理的消息被误 reclaim 造成重复消费。
+     */
+    private Duration reclaimMinIdle = Duration.ofSeconds(30);
+
+    private final Idempotent idempotent = new Idempotent();
+
+    @Data
+    public static class Idempotent {
+        /** 去重键前缀。 */
+        private String keyPrefix = "mq:idem:";
+        /** processing 标记 TTL:应大于单条业务处理时延。 */
+        private Duration processingTtl = Duration.ofSeconds(60);
+        /** success 标记 TTL:防重复消费的窗口。 */
+        private Duration successTtl = Duration.ofSeconds(300);
+        /** fail 标记 TTL:允许重新消费前的保留窗口。 */
+        private Duration failTtl = Duration.ofSeconds(300);
+    }
+}
diff --git a/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqDriverWiringTest.java b/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqDriverWiringTest.java
index 953e0de..98f5256 100644
--- a/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqDriverWiringTest.java
+++ b/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqDriverWiringTest.java
@@ -5,9 +5,9 @@ import com.njcn.mq.spi.MqIdempotentStore;
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.context.annotation.Bean;
-import org.springframework.data.redis.core.StringRedisTemplate;
 
 import java.lang.reflect.Method;
+import java.util.Arrays;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -37,9 +37,13 @@ class RedisStreamMqDriverWiringTest {
     }
 
     @Test
-    void declaresIdempotentStoreBean() throws Exception {
-        Method m = RedisStreamMqDriverAutoConfiguration.class
-                .getDeclaredMethod("mqIdempotentStore", StringRedisTemplate.class);
+    void declaresIdempotentStoreBean() {
+        Method m = Arrays.stream(RedisStreamMqDriverAutoConfiguration.class.getDeclaredMethods())
+                .filter(x -> x.getName().equals("mqIdempotentStore"))
+                .findFirst().orElse(null);
+        assertThat(m)
+                .as("redis-stream 模式应提供默认去重实现 @Bean(方法名 mqIdempotentStore)")
+                .isNotNull();
         assertThat(m.getAnnotation(Bean.class))
                 .as("redis-stream 模式应提供默认去重实现")
                 .isNotNull();
diff --git a/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqPropertiesTest.java b/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqPropertiesTest.java
new file mode 100644
index 0000000..b3e3f08
--- /dev/null
+++ b/mq-starter-redis-stream/src/test/java/com/njcn/mq/driver/redis/RedisStreamMqPropertiesTest.java
@@ -0,0 +1,49 @@
+package com.njcn.mq.driver.redis;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.context.properties.bind.Binder;
+import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
+import org.springframework.core.env.MapPropertySource;
+import org.springframework.core.env.MutablePropertySources;
+
+import java.time.Duration;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * {@link RedisStreamMqProperties} 默认值与绑定行为单测(纯 Binder，不 refresh context / 不连 Redis）。
+ *
+ * <p>守护两点:① 默认值与历史硬编码一致(不改变现有行为);② mq.redis-stream.* 前缀能覆盖默认。
+ */
+class RedisStreamMqPropertiesTest {
+
+    @Test
+    void defaults_matchLegacyHardcodedValues() {
+        RedisStreamMqProperties p = new RedisStreamMqProperties();
+        assertEquals(Duration.ofSeconds(30), p.getReclaimMinIdle(), "reclaim idle 默认应保持 30s");
+        assertEquals("mq:idem:", p.getIdempotent().getKeyPrefix());
+        assertEquals(Duration.ofSeconds(60), p.getIdempotent().getProcessingTtl());
+        assertEquals(Duration.ofSeconds(300), p.getIdempotent().getSuccessTtl());
+        assertEquals(Duration.ofSeconds(300), p.getIdempotent().getFailTtl());
+    }
+
+    @Test
+    void binds_mqRedisStreamPrefix_overridesDefaults() {
+        Map<String, Object> src = new HashMap<>();
+        src.put("mq.redis-stream.reclaim-min-idle", "90s");
+        src.put("mq.redis-stream.idempotent.processing-ttl", "15s");
+        src.put("mq.redis-stream.idempotent.key-prefix", "biz:idem:");
+        MutablePropertySources ps = new MutablePropertySources();
+        ps.addFirst(new MapPropertySource("test", src));
+
+        RedisStreamMqProperties bound = new Binder(ConfigurationPropertySources.from(ps))
+                .bind("mq.redis-stream", RedisStreamMqProperties.class).get();
+
+        assertEquals(Duration.ofSeconds(90), bound.getReclaimMinIdle());
+        assertEquals(Duration.ofSeconds(15), bound.getIdempotent().getProcessingTtl());
+        assertEquals("biz:idem:", bound.getIdempotent().getKeyPrefix());
+        assertEquals(Duration.ofSeconds(300), bound.getIdempotent().getSuccessTtl(), "未覆盖项保持默认");
+    }
+}