The invention discloses an electric automobile with liquid air as a power storage medium. The electric automobile comprises an automobile shell and an automobile driving device. An air storage pot, a pneumatic motor, an electric generator, a storage battery, a driving motor, an electric automobile control system and a residual air jetting discharge power-assisting device are arranged in the automobile shell. The air storage pot is connected with the pneumatic motor through an air flow speed control device. The pneumatic motor is connected with the electric generator. The storage battery is connected with the driving motor, and the driving motor is connected with the electric automobile control system. According to the electric automobile, the structure is simple, energy storage and electric generation are achieved in a physical mode, liquid air is gasified into gas to push the pneumatic motor, the pneumatic motor drives the electric generator to generate electricity, the electricity is stored in the storage battery of the automobile to drive the driving motor to rotate, the problems that the electric automobile is high in battery manufacturing price and low in charging speed, pollutes environment and the like are effectively solved, and then the electric automobile has the advantages that energy storage is clean, convenient and safe.