Disclosed is a single wire communication system for communicating between integrated circuits. The single wire communication system comprises an upper control device generating control commands, a to-be-controlled chip operating with the control commands, and a single wire communication module transferring the control commands. The single wire communication module processes the control commands from the upper control device with the control commands separated into a start signal, a data signal, an end signal, and an ack signal, converts them to at least one or more bits of data bits, and the transfers them to the to-be-controlled chip. By doing so, the present invention can transfer the control commands from the upper control device to the to-be-controlled chip without any loss or distortion caused from unstable factors such as noises, and enables high speed process of a number of commands.