The invention discloses an automatic sorting and binding device of test paper. The device comprises a base support. A sorting and paper feeding system and a binding system are arranged on the base support. The sorting and paper feeding system comprises multiple sets of paper trays, and the multiple sets of paper trays are put in the vertical direction in an overlapped manner. The binding system comprises a left guide rail, a right guide rail, left through shafts and right through shafts. A paper receiving disc is arranged between the left guide rail and the right guide rail. The paper receiving disc comprises a left half page and a right half page. A second connecting plate is arranged between the left through shafts and the right through shafts, and automatic binding machines are arrangedon the second connecting plate. By means of the device, automatic sorting and binding of the test paper can be achieved, manpower and material resources can be effectively saved, and the working efficiency is improved.