As　the　popular　social　networking　platform,　the　wechat　network　has　the　rapid　impact　on　people＇s　way　of　life.　By　analyzing　the　factors　that　influence　the　information　dissemination　among　wechat,　constructing　the　wechat　information　diffusion　field　by　building　three-dimensional　coordinate,　the　information　diffusion　model　was　established　based　on　the　field　theory.　The　process　of　information　dissemination　was　simulated　from　three　angles　by　using　Netlogo　simulation　platform,　that　is　the　factors　affecting　the　information　dissemination,　the　original　proportion　of　information　source　users,　and　different　wechat　network　structures.　Simulation　results　show　that　the　more　similar　characteristics　of　the　user,　the　dissemination　results　can　be　better;　when　connectivity　to　wechat　network　structure　is　better,　the　wider　the　path　of　information　dissemination　is,　more　channels;　when　the　information　potential　difference　is　small,　information　dissemination　is　better.　The　results　are　important　for　companies　to　accurate　positioning　customer　in　the　marketing　process.　©　2016,　The　Editorial　Board　of　Journal　of　System　Simulation.　All　right　reserved.