Industrial　cluster＇s　network　and　knowledge　integration　capability　are　important　factors　for　firms＇　innovation　performance.　This　paper　studies　the　relationships　between　them　with　empirical　research　method.The　result　shows　that　both　network　structure　and　network　relationship　of　industrial　cluster　have　significant　positive　effect　on　innovation　performance;Both　internal　knowledge　integration　and　external　knowledge　integration　have　significant　positive　effect　on　innovation　performance;Both　network　structure　and　network　relationship　have　a　positive　correlation　with　knowledge　integration　capability.Knowledge　integration　capability　has　positive　correlation　with　innovation　performance.Network　structure　and　network　relationship　have　influence　on　innovation　performance　by　the　mediating　role　of　knowledge　integration　capability.　©　2011　IEEE.