The invention relates to a paint spraying device, in particular to a paint spraying device for manufacturing a waterproof shoe. The invention aims to provide the paint spraying device which is high in paint spraying efficiency and used for manufacturing the waterproof shoe. In order to solve the technical problem, the invention provides the paint spraying device for manufacturing the waterproof shoe. The paint spraying device for manufacturing the waterproof shoe comprises a support, a first swinging seat, an electric push rod, a first connecting block, a sliding track, a sliding block, a spring, a strut, a swinging rod, a placing frame, a placing table, a pull
rope, a
sprayer, a first connecting rod, a second connecting rod, a second
piston, a glue box, a connection rod, a second connection block, a second swinging seat, a guide block, a third connecting rod and a first
piston, wherein the sliding track and the strut are arranged on the bottom of the inside of the support; and the sliding block is arranged on the sliding track. Effects of high paint spraying efficiency, high strength of the device, long service life of the device and simplicity in operation are achieved.