diff --git a/backend/alembic/versions/010_upgrade_user_language.py b/backend/alembic/versions/010_upgrade_user_language.py
new file mode 100644
index 0000000..d05e94b
--- /dev/null
+++ b/backend/alembic/versions/010_upgrade_user_language.py
@@ -0,0 +1,33 @@
+"""010_upgrade_user_language
+
+Revision ID: 8dc3b1bdbfef
+Revises: 804b08ac329d
+Create Date: 2025-06-10 11:21:35.257604
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '8dc3b1bdbfef'
+down_revision = '804b08ac329d'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    
+    op.add_column('sys_user', sa.Column('language', sa.VARCHAR(length=255), server_default=sa.text("'zh-CN'"), nullable=False))
+   
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    
+    op.drop_column('sys_user', 'language')
+   
+    # ### end Alembic commands ###