Abstract: The high confusion between Chinese digits directly affects the performance of Chinese digit speech recognition. Traditional methods are difficult to make an effective distinction between easy-confused digits. This paper presents a multi-parameter and multi-level recognition strategy. Firstly the digits are recognized by Mel spectral parameters based on HMM, then take secondary classification for the easy-confused digits using RRCGD-CC(Reflected Roots Chirp Group Delay-Cepstral Coefficients), which is a new parameter based on group delay spectrum, and SVM. The experimental results show that the recognition rate of“2”and”8” is improved by 8%, and the recognition rate of the system is improved by 2.3%. This result is fully explained that the RRCGD-CC is valid for easily confused digits.