For the problems of honing technology currently including expensive experiment costs and diffi-cult optimization of process parameter, the simulation analysis method of honing precision hole. Firstly, the mechanical basis of simulation analysis and machining mechanism of honing were analyzed. Secondly, finite element model of honing was build taking the plunger hole of the monoblock pump body as research object, formation process to intersect textured of honing was studied by simulation analysis, and post-processing method of dimensional accuracy extraction was introduced. Finally, simulation analysis comparison of five different process schemes combining specific conditions was carried on and the process parameters were opti-mized. Research results can provide theoretical guidance for honing technology of precision hole.