diff --git a/yudao-module-education/src/main/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImpl.java b/yudao-module-education/src/main/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImpl.java
index fbfedc53..70c98a64 100644
--- a/yudao-module-education/src/main/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImpl.java
+++ b/yudao-module-education/src/main/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImpl.java
@@ -465,7 +465,7 @@ public class PracticeSessionServiceImpl implements PracticeSessionService {
     // ========== internal helpers ==========
 
     /**
-     * 从 provider 获取题目列表，按 questionId 稳定排序，取前 count 条。
+     * 从 provider 获取题目列表。题集路由保留手工成员顺序；其他路由按 questionId 稳定排序。
      * 所有筛选条件（含 nodeId）完整转发到 provider，不做客户端裁剪。
      */
     private List<CatalogQuestionDTO> fetchAndOrderQuestions(String collectionId, String nodeId,
@@ -501,8 +501,10 @@ public class PracticeSessionServiceImpl implements PracticeSessionService {
             throw exception(INSUFFICIENT_ELIGIBLE_QUESTIONS, 0, count);
         }
 
-        allQuestions.sort(Comparator.comparing(CatalogQuestionDTO::getId, Comparator.nullsLast(String::compareTo))
-                .thenComparing(CatalogQuestionDTO::getContentVersion, Comparator.nullsLast(String::compareTo)));
+        if (collectionId == null || collectionId.isBlank()) {
+            allQuestions.sort(Comparator.comparing(CatalogQuestionDTO::getId, Comparator.nullsLast(String::compareTo))
+                    .thenComparing(CatalogQuestionDTO::getContentVersion, Comparator.nullsLast(String::compareTo)));
+        }
         if (allQuestions.size() > count) {
             allQuestions = allQuestions.subList(0, count);
         }
diff --git a/yudao-module-education/src/test/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImplTest.java b/yudao-module-education/src/test/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImplTest.java
index b84f09f9..67c06be3 100644
--- a/yudao-module-education/src/test/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImplTest.java
+++ b/yudao-module-education/src/test/java/cn/iocoder/yudao/module/education/service/practice/PracticeSessionServiceImplTest.java
@@ -67,6 +67,18 @@ public class PracticeSessionServiceImplTest extends PostgreSqlDbIntegrationTest
         assertEquals(0L, sessionMapper.selectCount());
     }
 
+    @Test
+    void shouldPreserveCollectionMembershipOrder() {
+        when(provider.isEnabled()).thenReturn(true);
+        when(provider.listQuestions(eq("col-order"), isNull(), isNull(), isNull(), eq(1), eq(2)))
+                .thenReturn(pageResult(List.of(questionDTO("20", "v1", "Twenty"), questionDTO("10", "v1", "Ten"))));
+        when(provider.listQuestions(eq("col-order"), isNull(), isNull(), isNull(), eq(2), eq(2)))
+                .thenReturn(pageResult(List.of()));
+        PracticeSessionCreateReqVO req = createReq("uuid-order", "col-order", 2);
+        PracticeSessionRespVO resp = service.createPracticeSession(req, 100L, 1L);
+        assertEquals(List.of("20", "10"), resp.getQuestions().stream().map(q -> q.getQuestionId()).toList());
+    }
+
     @Test
     void shouldCreateSessionAndReturnQuestions() {
         when(provider.isEnabled()).thenReturn(true);
@@ -82,8 +94,8 @@ public class PracticeSessionServiceImplTest extends PostgreSqlDbIntegrationTest
         assertNotNull(resp.getSessionId());
         assertEquals("ACTIVE", resp.getStatus());
         assertEquals(2, resp.getQuestions().size());
-        assertEquals("q-001", resp.getQuestions().get(0).getQuestionId());
-        assertEquals("q-002", resp.getQuestions().get(1).getQuestionId());
+        assertEquals("q-002", resp.getQuestions().get(0).getQuestionId());
+        assertEquals("q-001", resp.getQuestions().get(1).getQuestionId());
         assertEquals(1, resp.getQuestions().get(0).getSequence());
         assertEquals(2, resp.getQuestions().get(1).getSequence());
     }