Abstract: First, the recent advances of Chinese intelligent input technology were briefly discussed and the principles and shortcomings were analyzed, then the Chinese intelligent input approach based on hybrid language model was proposed and the implementation of the main architecture was studied, after that, the related problems with hybrid language model and the algorithms to solve the word lattice were investigated, at last, the automatic prediction algorithm and the machine learning technology used in Chinese intelligent input systems were discussed; the experiment results based on the prototype system showed that the correct conversion rate from Pinyin to Chinese characters reached 92.1%, which meets the designed goals.