diff --git a/backend/alembic/versions/039_create_terminology.py b/backend/alembic/versions/039_create_terminology.py
new file mode 100644
index 0000000..42ab588
--- /dev/null
+++ b/backend/alembic/versions/039_create_terminology.py
@@ -0,0 +1,41 @@
+"""039_create_terminology
+
+Revision ID: 25cbc85766fd
+Revises: fc23c4f3e755
+Create Date: 2025-08-25 11:38:32.990973
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+import pgvector
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '25cbc85766fd'
+down_revision = 'fc23c4f3e755'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.execute("CREATE EXTENSION IF NOT EXISTS vector;")
+
+    op.create_table('terminology',
+    sa.Column('id', sa.BigInteger(), sa.Identity(always=True), nullable=False),
+    sa.Column('pid', sa.BigInteger(), nullable=True),
+    sa.Column('create_time', sa.DateTime(), nullable=True),
+    sa.Column('word', sqlmodel.sql.sqltypes.AutoString(length=255), nullable=True),
+    sa.Column('description', sa.Text(), nullable=True),
+    sa.Column('embedding', pgvector.sqlalchemy.vector.VECTOR(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('terminology')
+    # ### end Alembic commands ###