The invention relates to the field of energy recycling technologies for new energy vehicles, and discloses a lock control device of a new energy vehicle. The lock control device comprises a fixed fixture block, a movable fixture block, a clamp tongue, a return spring and an electromagnetic pulling switch. The return spring is arranged in a clamp groove in chassis of the vehicle and is connected with the movable fixture block; a landing gear is connected with the lower end of the clamp tongue, a clamp tongue hole is formed in a middle upper section of the clamp tongue, a first lock control component is arranged on the movable fixture block and corresponds to the clamp tongue hole of the clamp tongue, and a second lock control component is arranged on the fixed fixture block and corresponds to the clamp tongue hole of the clamp tongue. The lock control device has the advantages that the lock control device is simple in structure and can be turned on and off by the aid of effects which are realized by vibration energy of the vehicle on the electromagnetic pulling switch; the purpose of saving energy can be sufficiently achieved by the aid of automatic original shape recovery working principles of springs and the gravity of objects, and accordingly the lock control device has obvious economic value and social value.