The invention relates to a novel mechanical type transmission which comprises box bodies, an input shaft, a middle shaft, an output shaft, bearings, gears, gear shifting forks, synchronizers and a synchronizer check ring, wherein the box body (1) is fixedly connected with the box body (2) and the box body (28) through bolts; the input shaft is arranged on the box bodies through the bearings, the middle shaft is connected to the box bodies through the bearings, and the output shaft is connected to the box bodies through the bearings; the tail end of the input shaft is inserted into the hole of the bearing (3), the bearing (3) is embedded into an inner hole of the output shaft, the synchronizers (9) and (18) are distributed on the input shaft, and the synchronizer (31) is distributed on the middle shaft; and the gears of the input shaft are reverse gear, first gear, second gear, fifth gear and third gear in sequence, the gears on a middle shaft assembly are reverse gear, first gear, second gear, fifth gear, third gear and a constant mesh gear in sequence, and the output shaft is a gear shaft and is meshed with the constant mesh gear. The novel mechanical type transmission provided by the invention has the advantages of compact structure, reasonable design, simpleness in box body processing, high intensity, small vibration, low noise, high transmission efficiency, full synchronizing, and stable on-off gear shift.