The invention discloses a paint spraying device convenient to use for automobile production. The paint spraying device comprises a base, a box body and a motor are fixedly connected to the two sides of the bottom of an inner cavity of the base, the top and the bottom of the left side of the box body communicate with a liquid injection pipe and a liquid drainage pipe, the ends, away from the box body, of the liquid injection pipe and the liquid drainage pipe penetrate out of the base, the left end of the liquid drainage pipe is sleeved with a pipe sleeve, and the right side of the output end ofthe motor penetrates out of the base and is sleeved with a driving wheel. By arranging the base, the box body, the motor, a protection cover, the driving wheel, a belt, a first rotating rod, a drivenwheel, a clamping plate, a drier, a paint spraying box, a water pump, a spray head, a connection pipe, an air filter, a shell, a second rotating rod, an electric telescopic rod, the liquid injectionpipe, the pipe sleeve, the liquid drainage pipe and a box door, the problem that existing some paint spraying devices for automobile production is inconvenient to use is solved, and the paint sprayingdevice for automobile production has the advantage of being convenient to use.