Abstract: Chinese Mandarin is the tonal language. Tone is important to Mandarin speech recognition. We proposed a method to recognize the tone of Mandarin continuous speech, which is the combination of embedded tone model and explicit tone model. This method can fuse the fundamental frequency information of short time and long time. The experimenu in "863-Test" and "TestCorpus98" test show that our proposed method can achieve 96. 12%and 93. 78% tone recognition correct rate separatively.

Key words: Tone, Fundamental freduency, Multi-space probability distribution