The invention discloses a waste circuit board recovery device. The waste circuit board recovery device comprises a circuit board conveying device, a plug-in mounting component unloading device, a surface component unloading device, a cutting device, a smashing device, a sorting device and a control system. The circuit board conveying device comprises a clamping mechanism and a conveying interval adjusting mechanism, and the smashing device comprises a feeding hopper, a coarse crushing device, a feeding pipe, a grinding device and a discharging pipe. The waste circuit board recovery device canbe applied to waste circuit boards with different sizes, the application range is wide, finer and more uniform circuit board particles are obtained through coarse crushing and three-level grinding, then classification collection is carried out, the recovery rate is high, more environmental protection and high efficiency are achieved, and industrial recovery of the waste circuit boards can be achieved.