diff --git a/backend/alembic/versions/035_sys_arg_ddl.py b/backend/alembic/versions/035_sys_arg_ddl.py
new file mode 100644
index 0000000..65ba04d
--- /dev/null
+++ b/backend/alembic/versions/035_sys_arg_ddl.py
@@ -0,0 +1,34 @@
+"""035_sys_arg_ddl
+
+Revision ID: 29559ee607af
+Revises: e8b470d2b150
+Create Date: 2025-08-15 11:43:26.175792
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+
+
+# revision identifiers, used by Alembic.
+revision = '29559ee607af'
+down_revision = 'e8b470d2b150'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'sys_arg',
+        sa.Column('id', sa.BigInteger(), primary_key=True, nullable=False, comment='ID'),
+        sa.Column('pkey', sa.String(255), nullable=False, comment='pkey'),
+        sa.Column('pval', sa.String(255), nullable=True, comment='pval'),
+        sa.Column('ptype', sa.String(255), nullable=False, server_default='str', comment='str or file'),
+        sa.Column('sort_no', sa.Integer(), nullable=False, server_default='1', comment='sort_no')
+    )
+    op.create_index(op.f('ix_sys_arg_id'), 'sys_arg', ['id'], unique=False)
+
+
+def downgrade():
+    op.drop_index(op.f('ix_sys_arg_id'), table_name='sys_arg')
+    op.drop_table('sys_arg')