The invention discloses a digital code Chinese character input method, which is provided with a basic unit for information input, and the code fetching relationship of the basic unit is that numbers are used as basic codes for coding, and the basic codes are defined on the corresponding numeric keys of the digital keyboard, and their The corresponding key name is the basic code, and each basic code is a code shared by multiple basic units. A key sequence additional unit is also provided, and the key sequence additional unit is an arrangement sequence of at most six candidate characters sequentially displayed on the display screen. The invention is easy to use, easy to operate, less input key times, high input efficiency, more humanized operation mode, and is suitable for inputting Chinese characters in a large character set. The present invention can, in a simple way, be configured with a display screen and include 10 numeric keys, 2 symbol keys *, # and 4 function keys ↑, ↓, ←, →, which are represented by mobile phones. Products and corresponding information terminal equipment can efficiently solve the problem of Chinese character information input.