diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f36938eee..46f3a4c21 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,6 +24,11 @@ jobs:
       steps:
         - name: Checkout Code
           uses: actions/checkout@v2
+        
+        - name: Check GPU is Free
+          run: |
+            chmod +x ./scripts/gpu_check.sh
+            ./scripts/gpu_check.sh
 
         - name: Megatron Unit Test
           run: |
@@ -42,6 +47,10 @@ jobs:
           run: |
             echo "You can access the test coverage report at the http://120.92.110.224:8081/${{github.sha}}/cov-report-megatron/index.html"
 
+        - name: Check GPU is Free
+          run: |
+            ./scripts/gpu_check.sh
+
         - name: Flagscale Unit Test
           run: |
             torchrun --nproc_per_node=8 -m pytest --import-mode=importlib --cov-append --cov-report=html:/workspace/report/${{github.sha}}/cov-report-flagscale --cov=flagscale -q -x tests/unit_tests/launcher
@@ -50,6 +59,10 @@ jobs:
           run: |
             echo "You can access the test coverage report at the http://120.92.110.224:8081/${{github.sha}}/cov-report-flagscale/index.html"
 
+        - name: Check GPU is Free
+          run: |
+            ./scripts/gpu_check.sh
+
         - name: Flagscale Functional Test
           run: |
             python run.py --config-path tests/functional_tests/aquila/conf --config-name config action=test
diff --git a/scripts/gpu_check.sh b/scripts/gpu_check.sh
new file mode 100644
index 000000000..80dd99d86
--- /dev/null
+++ b/scripts/gpu_check.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# memory MB
+
+gpu_count=$(nvidia-smi --query-gpu=name --format=csv,noheader | wc -l)
+
+memory_usage_max=30000
+
+while true; do
+  
+  IFS=$'\n' read -d '' -r -a memory_usage_array <<< "$(nvidia-smi --query-gpu=memory.used --format=csv,noheader,nounits)"
+  IFS=$'\n' read -d '' -r -a memory_total_array <<< "$(nvidia-smi --query-gpu=memory.total --format=csv,noheader,nounits)"
+  
+  need_wait=false
+
+  for ((i=0; i<$gpu_count; i++)); do
+    
+    memory_usage_i=$((${memory_usage_array[$i]}))
+    memory_total_i=$((${memory_total_array[$i]}))
+    memory_remin_i=$(($memory_total_i-$memory_usage_i))
+
+    if [ $memory_remin_i -lt $memory_usage_max ]; then
+      need_wait=true
+    fi
+
+  done
+  
+  if [ "$need_wait" = false ]; then
+        break
+  fi
+  
+  echo "wait for gpu free"
+  sleep 5m
+
+  unset memory_usage_array
+  unset memory_total_array
+
+done
\ No newline at end of file