diff --git a/scripts/migrations/convert_data_from_v1.py b/scripts/migrations/convert_data_from_v1.py
new file mode 100644
index 0000000..566ad43
--- /dev/null
+++ b/scripts/migrations/convert_data_from_v1.py
@@ -0,0 +1,54 @@
+import csv
+import json
+import os
+from argparse import ArgumentParser
+from collections import Counter
+
+if __name__ == "__main__":
+    parser = ArgumentParser()
+    parser.add_argument("notes_file")
+    parser.add_argument("output_dir")
+    parser.add_argument("--notes-file-name", default="notes.csv")
+    parser.add_argument("--topics-file-name", default="topics.csv")
+    parser.add_argument("--notes-topics-association-file-name", default="note_topic.csv")
+    parser.add_argument("--topic-threshold", type=int, default=5)
+
+    args = parser.parse_args()
+
+    with open(args.notes_file, "r", encoding="utf-8") as fin:
+        notes = list(csv.DictReader(fin))
+        for d in notes:
+            d["topic"] = [t.strip() for t in d["topic"].split(",")]
+    topics_with_count = Counter(t for d in notes for t in d["topic"])
+    topic_name_to_id_map = {t: i for i, (t, c) in enumerate(topics_with_count.items()) if c > args.topic_threshold}
+
+    if not os.path.exists(args.output_dir):
+        os.makedirs(args.output_dir)
+
+    with open(os.path.join(args.output_dir, args.topics_file_name), "w", encoding="utf-8") as fout:
+        writer = csv.DictWriter(fout, fieldnames=["topic_id", "label"])
+        writer.writeheader()
+        for topic, topic_id in topic_name_to_id_map.items():
+            writer.writerow({"topic_id": topic_id, "label": json.dumps({"ja": topic})})
+
+    with open(os.path.join(args.output_dir, args.notes_file_name), "w", encoding="utf-8") as fout:
+        writer = csv.DictWriter(fout, fieldnames=["note_id", "post_id", "language", "summary", "created_at"])
+        writer.writeheader()
+        for d in notes:
+            writer.writerow(
+                {
+                    "note_id": d["note_id"],
+                    "post_id": d["post_id"],
+                    "language": d["language"],
+                    "summary": d["summary"],
+                    "created_at": d["created_at"],
+                }
+            )
+
+    with open(os.path.join(args.output_dir, args.notes_topics_association_file_name), "w", encoding="utf-8") as fout:
+        writer = csv.DictWriter(fout, fieldnames=["note_id", "topic_id"])
+        writer.writeheader()
+        for d in notes:
+            for t in d["topic"]:
+                if t in topic_name_to_id_map:
+                    writer.writerow({"note_id": d["note_id"], "topic_id": topic_name_to_id_map[t]})
diff --git a/scripts/migrations/migrate_all.py b/scripts/migrations/migrate_all.py
new file mode 100644
index 0000000..0c25d72
--- /dev/null
+++ b/scripts/migrations/migrate_all.py
@@ -0,0 +1,74 @@
+import csv
+import json
+import os
+from argparse import ArgumentParser
+
+from dotenv import load_dotenv
+from sqlalchemy.orm import Session
+
+from birdxplorer.logger import get_logger
+from birdxplorer.settings import GlobalSettings
+from birdxplorer.storage import (
+    Base,
+    NoteRecord,
+    NoteTopicAssociation,
+    TopicRecord,
+    gen_storage,
+)
+
+if __name__ == "__main__":
+    parser = ArgumentParser()
+    parser.add_argument("data_dir")
+    parser.add_argument("--notes-file-name", default="notes.csv")
+    parser.add_argument("--topics-file-name", default="topics.csv")
+    parser.add_argument("--notes-topics-association-file-name", default="note_topic.csv")
+    load_dotenv()
+    args = parser.parse_args()
+    settings = GlobalSettings()
+    logger = get_logger(level=settings.logger_settings.level)
+    storage = gen_storage(settings=settings)
+
+    Base.metadata.create_all(storage.engine)
+    with Session(storage.engine) as sess:
+        with open(os.path.join(args.data_dir, args.topics_file_name), "r", encoding="utf-8") as fin:
+            for d in csv.DictReader(fin):
+                d["topic_id"] = int(d["topic_id"])
+                d["label"] = json.loads(d["label"])
+                if sess.query(TopicRecord).filter(TopicRecord.topic_id == d["topic_id"]).count() > 0:
+                    continue
+                sess.add(TopicRecord(topic_id=d["topic_id"], label=d["label"]))
+            sess.commit()
+        with open(os.path.join(args.data_dir, args.notes_file_name), "r", encoding="utf-8") as fin:
+            for d in csv.DictReader(fin):
+                if sess.query(NoteRecord).filter(NoteRecord.note_id == d["note_id"]).count() > 0:
+                    continue
+                sess.add(
+                    NoteRecord(
+                        note_id=d["note_id"],
+                        post_id=d["post_id"],
+                        language=d["language"],
+                        summary=d["summary"],
+                        created_at=d["created_at"],
+                    )
+                )
+            sess.commit()
+        with open(os.path.join(args.data_dir, args.notes_topics_association_file_name), "r", encoding="utf-8") as fin:
+            for d in csv.DictReader(fin):
+                if (
+                    sess.query(NoteTopicAssociation)
+                    .filter(
+                        NoteTopicAssociation.note_id == d["note_id"],
+                        NoteTopicAssociation.topic_id == d["topic_id"],
+                    )
+                    .count()
+                    > 0
+                ):
+                    continue
+                sess.add(
+                    NoteTopicAssociation(
+                        note_id=d["note_id"],
+                        topic_id=d["topic_id"],
+                    )
+                )
+            sess.commit()
+    logger.info("Migration is done")