A digital Chinese character four code input system comprises computer, cell phone, and other information equipment keypad, using 0-9 numeric keys as the character input keys, features in categorizing the basic elements of the character input into two parts, one representing the basic strokes of Chinese character, corresponding with numeric keys 1, 2, 3, 4, 5, the other representing selected radicals corresponding with 6, 7, 8, 9, 0.It only requires inputting front two strokes and last two strokes numeric codes. It excels the input system with high efficiency, quick and easy typing and simple way of learning. It benefits the promotion and application of Chinese characters in the information time.