The invention provides an integrated structure of a vehicle-mounted charger and a motor controller of an electric automobile and belongs to the field of an electric automobile control technology. The structure comprises a vehicle-mounted charger and motor controller integrated module and a cooling pipeline. The vehicle-mounted charger and motor controller integrated module is used for carrying out integrated circuit design on a charger module and a motor controller module which are separated previously; the charger module and the motor controller module share a power switching device and a communication control module. The cooling pipeline is used for carrying out water cooling on the vehicle-mounted charger and motor controller integrated module. According to the integrated structure, an integrated circuit of the vehicle-mounted charger module and the motor controller module is designed into one integrated module, so that the structure is safe and reliable and easy to control; the requirements on charging a high-voltage power battery in the automobile and controlling a motor are met and the whole automobile space structure of the electric automobile is greatly saved, so that the integrated structure has a very good market application prospect.