The utility model discloses an automobile electronic combination instrument and belongs to the technical field of automobile instrument display devices. The combination instrument mainly solves the problem that interchangeability among resistance-type sensors, voltage type sensors and pulse width modulation (PWM) wave output sensors is poor caused by the fact existing instruments and interface circuits of sensors are not universal. The combination instrument is mainly characterized by comprising an instrument circuit board which is provided with a microcontroller, an instrument support, a dial, an instrument pointer, a stepping motor, a connector, a button, a dot-matrix liquid crystal display, a housing, a lining board, glass and a signal processing circuit group, wherein a sampling circuit, a high-pass filter circuit and a low-pass filter circuit are sequentially connected to form the signal processing circuit group, all input ends of the signal processing circuit group are respectively connected with corresponding sensor outputs, and all output ends are respectively connected with corresponding microcontroller signal input ends. The combination instrument has the advantages that the maintenance of the whole automobile is facilitated, special members are reduced, the cost is low and instrument functions of the whole automobile are achieved.