diff --git a/dmdb/Dockerfile b/dmdb/Dockerfile
index 1d6475e..cbaf0e4 100644
--- a/dmdb/Dockerfile
+++ b/dmdb/Dockerfile
@@ -1,26 +1,25 @@
-FROM ubuntu:22.04
+# 构建阶段：复制安装文件并执行安装
+FROM ubuntu:22.04 AS builder
 
 ENV DM8_TMP_PATH="/dm8-tmp"
 
-RUN mkdir -p ${DM8_TMP_PATH}
-
 COPY DMInstall.bin ${DM8_TMP_PATH}/
-
 COPY install_setting.xml ${DM8_TMP_PATH}/
 
+RUN chmod +x ${DM8_TMP_PATH}/DMInstall.bin && \
+    ${DM8_TMP_PATH}/DMInstall.bin -q ${DM8_TMP_PATH}/install_setting.xml && \
+    rm -rf ${DM8_TMP_PATH}
+
+# 运行阶段：只复制安装后的软件和必要文件
+FROM ubuntu:22.04
+
+COPY --from=builder /opt/dmdbms /opt/dmdbms
 COPY entrypoint.sh /entrypoint.sh
 
-RUN chmod +x ${DM8_TMP_PATH}/DMInstall.bin
-
-RUN chmod +x /entrypoint.sh
-
-RUN useradd -m dmdba
-
-RUN ${DM8_TMP_PATH}/DMInstall.bin -q ${DM8_TMP_PATH}/install_setting.xml
-
-RUN rm -rf ${DM8_TMP_PATH}
-
-RUN mkdir -p /init.db
+RUN useradd -m dmdba && \
+    chmod +x /entrypoint.sh && \
+    mkdir -p /init.db && \
+    chown -R dmdba /opt/dmdbms
 
 WORKDIR /
 
diff --git a/dmdb/build.sh b/dmdb/build.sh
index 131da8a..e2df7da 100644
--- a/dmdb/build.sh
+++ b/dmdb/build.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 
-docker build -t dmdb:8 .
\ No newline at end of file
+docker build --no-cache -t dmdb:8 .
\ No newline at end of file
diff --git a/dmdb/entrypoint.sh b/dmdb/entrypoint.sh
index c5adc40..5b97ed1 100644
--- a/dmdb/entrypoint.sh
+++ b/dmdb/entrypoint.sh
@@ -21,7 +21,7 @@ if [ ! -f "$DM_INI_PATH" ]; then
   echo "初始化数据库..."
   su - dmdba -c "${DM_PATH}/bin/dminit PATH=${DM_DATA_PATH} DB_NAME=${DB_NAME} SYSDBA_PWD=${DM_INIT_PWD} SYSAUDITOR_PWD=${DM_INIT_PWD}"
 
-  if -f "$DM_LICENSE_PATH"; then
+  if [ -f "$DM_LICENSE_PATH" ]; then
     echo "复制许可证..."
     cp $DM_LICENSE_PATH ${DM_PATH}/bin/dm.key
     chown dmdba ${DM_PATH}/bin/dm.key
@@ -44,7 +44,7 @@ if [ ! -f "$DM_INI_PATH" ]; then
   done
   echo "初始化完成."
 else
-  if -f "$DM_LICENSE_PATH"; then
+  if [ -f "$DM_LICENSE_PATH" ]; then
     echo "复制许可证..."
     cp $DM_LICENSE_PATH ${DM_PATH}/bin/dm.key
     chown dmdba ${DM_PATH}/bin/dm.key