The invention discloses a mobile phone intelligent induction recognition traffic signal system based on a Bluetooth technology. The system comprises a signal lamp, a control system and an APP client. The traffic signal lamp control system takes an STC89C52RC single-chip microcomputer as the core. The single-chip microcomputer is connected with a clock circuit and a reset circuit, and an appropriate peripheral circuit is added to form the smallest single-chip microcomputer system. A signal lamp program is burnt into the smallest system smallest single-chip microcomputer. Serial communication is used to send the status of the traffic signal lamp. A Bluetooth module searches for the Bluetooth of an intelligent mobile phone to realize connection and matching. A serial communication mode is used to send a received signal to a mobile phone client APP. The mobile phone client APP receives the signal, and at the same time displays the name of the station where a subway is currently located and the status of the traffic lamp on a road. The problem of single traditional traffic signal lamp application scene is solved.