diff --git a/fine_tune.py b/fine_tune.py
index 02f665bd..8e615203 100644
--- a/fine_tune.py
+++ b/fine_tune.py
@@ -200,6 +200,8 @@ def train(args):
   # epoch数を計算する
   num_update_steps_per_epoch = math.ceil(len(train_dataloader) / args.gradient_accumulation_steps)
   num_train_epochs = math.ceil(args.max_train_steps / num_update_steps_per_epoch)
+  if (args.save_n_epoch_ratio is not None) and (args.save_n_epoch_ratio > 0):
+    args.save_every_n_epochs = math.floor(num_train_epochs / args.save_n_epoch_ratio) or 1
 
   # 学習する
   total_batch_size = args.train_batch_size * accelerator.num_processes * args.gradient_accumulation_steps
diff --git a/library/train_util.py b/library/train_util.py
index 0fdbadc1..4ed83250 100644
--- a/library/train_util.py
+++ b/library/train_util.py
@@ -1057,6 +1057,8 @@ def add_training_arguments(parser: argparse.ArgumentParser, support_dreambooth:
                       choices=[None, "float", "fp16", "bf16"], help="precision in saving / 保存時に精度を変更して保存する")
   parser.add_argument("--save_every_n_epochs", type=int, default=None,
                       help="save checkpoint every N epochs / 学習中のモデルを指定エポックごとに保存する")
+  parser.add_argument("--save_n_epoch_ratio", type=int, default=None,
+                      help="save checkpoint N epoch ratio / 学習中のモデルを指定のエポック割合で保存する")
   parser.add_argument("--save_last_n_epochs", type=int, default=None, help="save last N checkpoints / 最大Nエポック保存する")
   parser.add_argument("--save_last_n_epochs_state", type=int, default=None,
                       help="save last N checkpoints of state (overrides the value of --save_last_n_epochs)/ 最大Nエポックstateを保存する(--save_last_n_epochsの指定を上書きします)")
diff --git a/train_db.py b/train_db.py
index 8ac503ea..fe6fd4e6 100644
--- a/train_db.py
+++ b/train_db.py
@@ -176,6 +176,8 @@ def train(args):
   # epoch数を計算する
   num_update_steps_per_epoch = math.ceil(len(train_dataloader) / args.gradient_accumulation_steps)
   num_train_epochs = math.ceil(args.max_train_steps / num_update_steps_per_epoch)
+  if (args.save_n_epoch_ratio is not None) and (args.save_n_epoch_ratio > 0):
+    args.save_every_n_epochs = math.floor(num_train_epochs / args.save_n_epoch_ratio) or 1
 
   # 学習する
   total_batch_size = args.train_batch_size * accelerator.num_processes * args.gradient_accumulation_steps
diff --git a/train_network.py b/train_network.py
index d60ae9a0..5da9872b 100644
--- a/train_network.py
+++ b/train_network.py
@@ -212,6 +212,8 @@ def train(args):
   # epoch数を計算する
   num_update_steps_per_epoch = math.ceil(len(train_dataloader) / args.gradient_accumulation_steps)
   num_train_epochs = math.ceil(args.max_train_steps / num_update_steps_per_epoch)
+  if (args.save_n_epoch_ratio is not None) and (args.save_n_epoch_ratio > 0):
+    args.save_every_n_epochs = math.floor(num_train_epochs / args.save_n_epoch_ratio) or 1
 
   # 学習する
   total_batch_size = args.train_batch_size * accelerator.num_processes * args.gradient_accumulation_steps