For　the　problems　that　secondary　concentrators　structure　is　complex,　process　is　difficult,　and　cost　is　high,　considering　the　actual　engineering　application,　design　of　secondary　microprism　for　dense　matrix　type　concentrating　photovoltaic　module　was　presented.　The　3-D　model　of　this　design　was　established　by　Solidworks　and　important　parameters　such　as　inclination　angle　and　component　height　get　optimized　using　Zemax.　The　results　show　that　the　combination　has　the　highest　energy　when　secondary　microprisms　height　is　5　mm,　upper　side　lengths　is　7　mm　and　working　face　inclination　is　67.38°.　The　energy　of　solar　cell　surface　can　reach　2.466　9　W,　increasing　by　31%　compared　with　that　of　without　secondary　microprisms.　It　shows　that　the　secondary　microprism　is　very　important　in　dense　matrix　type　concentrating　photovoltaic　module.　©　2015,　Editorial　Board　of　Journal　of　Infrared　and　Laser　Engineering.　All　right　reserved.