diff --git a/ecs/jskult-webapp/src/controller/bio_api.py b/ecs/jskult-webapp/src/controller/bio_api.py
index 9107b109..982ef8d2 100644
--- a/ecs/jskult-webapp/src/controller/bio_api.py
+++ b/ecs/jskult-webapp/src/controller/bio_api.py
@@ -69,6 +69,9 @@ def search_bio_data(
         actions=[
             UserSession.last_access_time.set(UserSession.new_last_access_time()),
             UserSession.record_expiration_time.set(UserSession.new_record_expiration_time()),
+            # 検索結果をキャッシュする
+            UserSession.bio_search_condition.set(bio_form.model_dump()),
+            UserSession.bio_search_count.set(bio_sales_lot_count),
         ]
     )
     set_session(session)
diff --git a/ecs/jskult-webapp/src/model/internal/session.py b/ecs/jskult-webapp/src/model/internal/session.py
index 99233a1e..cba115a3 100644
--- a/ecs/jskult-webapp/src/model/internal/session.py
+++ b/ecs/jskult-webapp/src/model/internal/session.py
@@ -1,7 +1,8 @@
 import datetime
 import uuid
 
-from pynamodb.attributes import NumberAttribute, UnicodeAttribute
+from pynamodb.attributes import (JSONAttribute, NumberAttribute,
+                                 UnicodeAttribute)
 from pynamodb.models import Model as DynamoDBTableModel
 
 from src.system_var import environment
@@ -23,6 +24,8 @@ class UserSession(DynamoDBTableModel):
     csrf_token = UnicodeAttribute()
     last_access_time = NumberAttribute()
     record_expiration_time = NumberAttribute()
+    bio_search_condition = JSONAttribute(null=True, default=None)
+    bio_search_count = NumberAttribute(null=True, default=None)
 
     @classmethod
     def new_last_access_time(cls):
diff --git a/ecs/jskult-webapp/src/services/bio_view_service.py b/ecs/jskult-webapp/src/services/bio_view_service.py
index 1402bbd0..bbf01bcb 100644
--- a/ecs/jskult-webapp/src/services/bio_view_service.py
+++ b/ecs/jskult-webapp/src/services/bio_view_service.py
@@ -72,7 +72,13 @@ class BioViewService(BaseService):
         return display_bio_data
 
     def count_bio_data(self, search_params: BioModel, session: UserSession) -> int:
-        # 生物由来データの件数を取得
+        # 検索値が前回検索時と変更がない場合、キャッシュした件数を返す
+        previous_search_params = session.bio_search_condition
+        current_search_params = search_params.model_dump()
+        if previous_search_params == current_search_params:
+            return session.bio_search_count
+
+        # 生物由来データの件数をDBから取得
         bio_sales_data_count = self.bio_sales_repository.fetch_count(parameter=search_params)
         return bio_sales_data_count