The utility model relates to an electric vehicle multi-source information real-time acquisition and display device based on a CAN bus. The acquisition and display device comprises a power supply module, a host data fusion processing module, a salve data acquisition module and an instrument display module. The output terminal of the power supply module is connected to the host data fusion processing module, the salve data acquisition module and the instrument display module. The host data fusion processing module comprises a bluetooth transmitting/receiving module, a vehicle signal acquisition module, a CAN host interface module, an RS232 interface module and a reserved standard interface module. The salve data acquisition module comprises a current acquisition module, a voltage acquisition module, a temperature acquisition module and a CAN slave interface module. The acquisition and display device has simple and reasonable structure, is rapid and convenient to install, has low cost, and is safe and reliable. By employing the acquisition and display device, real-time, high-speed and high-capacity data transmission between a vehicle internal intelligent sensor and a microcontroller can be well carried out.