In order to improve the shifting quality and reduce the shift time, a shifting mechanism for automated manual transmission (AMT) direct driven by electromagnetic linear actuator was proposed. Compared with the conventional AMT (about 1.78 kg), the total mass of shifting mechanism (1.37 kg) was reduced by 23%. The shift process was divided into several stages and the feasibility of design program was verified based on detailed mathematical models of shift process and the test bench of AMT. Gear select movement did not exist in the process of gearshift and it could make upshift and downshift happened in the same time. The 3~4 gearshift time was controlled at 120 ms when the rotary speed difference was 500 r/min and the moment of inertia was 0.03 kg·m2. The shifting quality of AMT was improved and could be further improved in the future. The results showed that the shifting mechanism of automated manual transmission based on electromagnetic linear actuator could achieve the functional of automatic shift, and it had well application prospect in the field of automatic transmission.