diff --git a/.gitea/workflows/autograde.yml b/.gitea/workflows/autograde.yml
index 8868cd0..7ca8cdc 100644
--- a/.gitea/workflows/autograde.yml
+++ b/.gitea/workflows/autograde.yml
@@ -123,18 +123,30 @@ jobs:
             HOST=$(echo "${{ github.server_url }}" | sed 's|https\?://||' | cut -d'/' -f1)
           fi
           
-          ORG=$(echo "${{ github.repository }}" | cut -d'/' -f1)
-          REPO_NAME=$(echo "${{ github.repository }}" | cut -d'/' -f2)
+          # 尝试使用课程主组织获取测试仓库
+          # 如果测试仓库在学生组织中不存在，可能在课程组织中
+          POTENTIAL_ORGS=("vibevault-course" "course-assets" "vibevault-main" "final-vibevault")
           
           # 直接使用正确的测试仓库名
           ASSIGNMENT_ID="final-vibevault"
           
-          echo "📥 Fetching tests and grading scripts from ${ORG}/${ASSIGNMENT_ID}-tests..."
+          # 尝试从多个可能的组织中克隆测试仓库
+          for COURSE_ORG in "${POTENTIAL_ORGS[@]}"; do
+            echo "📥 Trying to fetch tests from ${COURSE_ORG}/${ASSIGNMENT_ID}-tests..."
+            
+            AUTH_URL="http://${TESTS_USERNAME}:${TESTS_TOKEN}@${HOST}/${COURSE_ORG}/${ASSIGNMENT_ID}-tests.git"
+            
+            if git -c http.sslVerify=false clone --depth=1 "$AUTH_URL" _priv_tests 2>&1; then
+              echo "✅ Successfully cloned ${COURSE_ORG}/${ASSIGNMENT_ID}-tests!"
+              break
+            else
+              echo "❌ Failed to clone from ${COURSE_ORG}, trying next organization..."
+            fi
+          done
           
-          AUTH_URL="http://${TESTS_USERNAME}:${TESTS_TOKEN}@${HOST}/${ORG}/${ASSIGNMENT_ID}-tests.git"
-          
-          if ! git -c http.sslVerify=false clone --depth=1 "$AUTH_URL" _priv_tests 2>&1; then
-            echo "❌ Failed to clone ${ASSIGNMENT_ID}-tests repository!"
+          # 检查是否成功克隆了测试仓库
+          if [ ! -d "_priv_tests" ]; then
+            echo "❌ Failed to clone ${ASSIGNMENT_ID}-tests repository from any organization!"
             exit 1
           fi