diff --git a/paddlespeech/cli/tts/infer.py b/paddlespeech/cli/tts/infer.py
index 707518c05..f6cec90d0 100644
--- a/paddlespeech/cli/tts/infer.py
+++ b/paddlespeech/cli/tts/infer.py
@@ -292,19 +292,19 @@ class TTSExecutor(BaseExecutor):
         with open(self.voc_config) as f:
             self.voc_config = CfgNode(yaml.safe_load(f))
 
-        with open(self.phones_dict, "r") as f:
+        with open(self.phones_dict, "rt", encoding='utf-8') as f:
             phn_id = [line.strip().split() for line in f.readlines()]
         vocab_size = len(phn_id)
 
         tone_size = None
         if self.tones_dict:
-            with open(self.tones_dict, "r") as f:
+            with open(self.tones_dict, "rt", encoding='utf-8') as f:
                 tone_id = [line.strip().split() for line in f.readlines()]
             tone_size = len(tone_id)
 
         spk_num = None
         if self.speaker_dict:
-            with open(self.speaker_dict, 'rt') as f:
+            with open(self.speaker_dict, 'rt', encoding='utf-8') as f:
                 spk_id = [line.strip().split() for line in f.readlines()]
             spk_num = len(spk_id)
 
diff --git a/paddlespeech/t2s/frontend/phonectic.py b/paddlespeech/t2s/frontend/phonectic.py
index 261db80a8..af86d9b80 100644
--- a/paddlespeech/t2s/frontend/phonectic.py
+++ b/paddlespeech/t2s/frontend/phonectic.py
@@ -58,7 +58,7 @@ class English(Phonetics):
         self.punc = "：，；。？！“”‘’':,;.?!"
         self.text_normalizer = TextNormalizer()
         if phone_vocab_path:
-            with open(phone_vocab_path, 'rt') as f:
+            with open(phone_vocab_path, 'rt', encoding='utf-8') as f:
                 phn_id = [line.strip().split() for line in f.readlines()]
             for phn, id in phn_id:
                 self.vocab_phones[phn] = int(id)
diff --git a/paddlespeech/t2s/frontend/zh_frontend.py b/paddlespeech/t2s/frontend/zh_frontend.py
index ddd8cf5c7..7bf87b631 100644
--- a/paddlespeech/t2s/frontend/zh_frontend.py
+++ b/paddlespeech/t2s/frontend/zh_frontend.py
@@ -144,12 +144,12 @@ class Frontend():
         self.vocab_phones = {}
         self.vocab_tones = {}
         if phone_vocab_path:
-            with open(phone_vocab_path, 'rt') as f:
+            with open(phone_vocab_path, 'rt', encoding='utf-8') as f:
                 phn_id = [line.strip().split() for line in f.readlines()]
             for phn, id in phn_id:
                 self.vocab_phones[phn] = int(id)
         if tone_vocab_path:
-            with open(tone_vocab_path, 'rt') as f:
+            with open(tone_vocab_path, 'rt', encoding='utf-8') as f:
                 tone_id = [line.strip().split() for line in f.readlines()]
             for tone, id in tone_id:
                 self.vocab_tones[tone] = int(id)