The invention discloses an automatic 
cropping, sorting and 
ranking device for test paper. The automatic 
cropping, sorting and 
ranking device comprises a rack and further comprises a 
drive motor, a 
cropping mechanism, a 
ranking mechanism, a positioning tool and a sorting mechanism, all of which are arranged on the rack. The 
drive motor drives the cropping mechanism and the ranking mechanism througha 
cam. The cropping mechanism comprises a cutter, a cropping connecting rod and a cropping transmission 
assembly. The ranking mechanism comprises a track, a ranking connecting rod and a side pushingblock. The positioning tool comprises a positioning carrier and a positioning drive set, and the positioning drive set drives a positioning cavity in the positioning carrier to be in 
butt joint with the 
tail end of the track. The sorting mechanism comprises a 
CCD camera and a camera 
assembly arranged on the rack. The 
CCD camera is arranged on the camera 
assembly. By means of the automatic cropping, sorting and ranking device, 
cut-off products can be directly ranked, positioning is accurate and tidy, the automatic cropping, sorting and ranking device can be directly guided into an automatic 
production line to be applied without manual intervention, actions are simple and reliable, 
synchronism is good, the speed is high, and OK products and NG products can be sorted.