Based on the theory of cohesive force model, this paper proposes a flexible screen adhesion method, which overcomes the problem that the traditional screen adhesion technology can only be used for flat screen adhesion but not flexible material adhesion. A simulation model is established to simulate the bonding process and analyze the stress variation of the process. The influence of different down loading and rotation speed on the simulation results is discussed. Based on the cohesion model theory, a kind of fitting method for flexible screen can be established. The influence of the change of the down load on the stress is linear. The change of rotation speed has little effect on stress.