The　finite　element　analysis　(FEA)　is　a　numerical　method　for　predicting　the　mechanical　property　of　short　fiber　reinforced　composite　usefully.　However,　as　we　know,　there　is　always　a　“jamming”　limit　when　generating　fiber　architecture　expecially　in　the　cases　of　high　volume　fraction　and　high　aspect　ratio　of　short　fiber.　Even　if　the　volume　fraction　and　aspect　ratio　in　finite　element　model　meet　the　practical　requirements,　the　problem　of　mesh　deformity　will　always　occur　which　would　lead　to　unconverge　of　numerical　computation.　In　this　work,　embedded　element　technique　which　will　help　to　reduce　the　probability　of　the　above　two　problems　is　employed　to　establish　the　finite　element　model　of　short　fiber　reinforced　composite.　The　effect　of　edge　size,　thickness　and　mesh　density　of　FE　models　on　the　elastic　modulus　were　investigated.　Numerical　results　show　that　the　value　of　elastic　modulus　mainly　depend　on　the　edge　size　and　fiber　amount　of　FE　model　while　the　effect　of　thickness　can　be　neglected.　The　elastic　modulus　takes　to　converge　for　high　element　number.　An　inverse　method　is　proposed　to　calculate　volume　fraction　of　short　fibers,　by　which　numerical　results　agree　well　with　the　calculation　results　of　empirical　formula　based　on　Halpin-Tsai　equation.　©　2018　Trans　Tech　Publications,　Switzerland.