At present,the chemical vapor deposition,micro-mechanical decollement method,hydro-thermal synthesis method and physical vapour deposition method were used to synthesize a large area of single,double and multilayer MoS_2 film,which the chemical vapor deposition method has been most noticed. Especially,a large area single layer MoS_2 film in substrate of Si / SiO_2,sapphire and graphitized carbon can be synthesized by MoCl_5 and S. The 3~ 10 layers of MoS_2 film will be formed by hydro-thermal synthesis meth...