The invention relates to a monte carlo simulation parallel computing method for the kinetic process of polymerization reaction. The method comprises the following steps: dividing the simulated polymerization reaction system into a plurality of independent subsystems; dispersing to a plurality of CPU to operate; globally counting the operating results, wherein the parallel operating mechanism includes two lines, the first line is that the polymerization reaction condition of single subsystem is respectively simulated in each CPU, the reaction degree and the reaction system information are globally averagely counted at a certain operating time intervals in order to be used as the simulating state of the whole polymerization reaction system; the second line is that the polymerization reaction condition of single subsystem is respectively simulated in each DCPU, and the polymerization reaction information is globally averaged and re-divided into the subsystems with the same quantity at a certain operating time intervals and then randomly distributed to each CPU, so as to realize the reaction state and the information averaging of the parallel system. With the adoption of the simulation method, the circumstance that the difference between the simulation condition and the actual system is large due to excessively large size of the simulation system can be avoided.