This paper reviewed research achievements of initiator and comonomer in the preparation of polyoxymethylene

and then summarized their research progress in structure and performance. It was pointed out that we must synthesize high performance polyoxymethylene such as introducing comonomers with sidegroups in order to improve toughness and thermal stability of polyoxymethylene. By optimizing molecular structure of comonomer

adjusting the amount of comonomer

we could gain high performance polyoxymethylene resin to adapt to the high speed

high temperature and high pressure working environment.