The invention discloses a vegetable processing and cutting-off and root-removing device. The vegetable processing and cutting-off and root-removing device comprises a driving shaft and a driven shaft,the driving shaft and the driven shaft are arranged on the inner side of the machine frame, the two ends of the driving shaft and the two ends of the driven shaft are respectively and rotationally connected with the inner walls of the corresponding two sides of the machine frame through bearings, a current regulator, a control panel, a guide motor and a driving motor are fixed on one side wall ofthe rack, an output shaft of the driving motor is fixedly connected with one end of the driving shaft through a coupler, the driving shaft is in transmission connection with the driven shaft througha conveying belt, a cutting platform is fixed on the inner side of the machine frame, and the cutting platform is located at one end of the conveying belt, a mounting frame and a supporting frame arefixedly welded to the top of the frame, moreover, the supporting frame is arranged right opposite to the cutting platform. According to the independent root removal of the single vegetables, waste caused by simultaneous root removal of multiple vegetables is avoided; compared with a traditional manual cut-off and root-removing method, the method has the advantages that the working efficiency is higher, the safety is achieved, and the root removing effect is better.