Digit keyboard intelligent phonetic Chinese character input method

The invention relates to a digital keyboard-based intelligent phonetic Chinese character input method, using a 'sentence' as a unit and inputting Chinese characters to cellphones, telephones, electrographs or handhold information processing devices. It can simultaneously and automatically number key-bit ambiguity, phonetic combination ambiguity and homophone ambiguity in the Chinese character input course. The user only need input the number keys corresponding to the Chinese phonetic alphabets so that the system can regulate the corresponding Chinese characters in the sentence range according to the context, assuring the accuracy of the Chinese sentence. In the input course, the confirmation of number phonetic alphabets can be operated artificially and also be automatically completed by the system, and at the same time, it can process other forms of phonetic inputs. It can automatically learn user knowledge, and continuously heightens the accuracy of conversion from phonetic alphabets to Chinese characters. It is natural to operate, easy to learn and able to reduce key striking times of inputting phonetic alphabets, increasing Chinese character input speed of cellphones, etc.