From　the　theoretical　logic　which　open　innovation　could　improve　innovation　performance　through　promoting　organizational　learning,　the　paper　suggests　that　the　breadth,　depth　and　coordination　of　open　innovation　play　a　significant　promoting　role　for　firms.　Firms　have　more　advantages　in　knowledge　acquisition,　absorption　and　utilization　by　the　means　of　multi-cooperation　with　external　technology　sources.　Open　innovation　has　value　for　firms　to　explore　and　absorb　new　knowledge,　and　to　enhance　knowledge　capability　in　the　existing　technology　areas.　The　paper　conducts　an　empirical　research　with　171　Chinese　firm　samples,　the　result　shows　that　the　breadth,　depth　and　coordination　of　open　innovation　have　a　significant　positive　influence　on　organizational　learning,　the　impact　of　open　innovation　on　firm＇s　innovation　performance　is　conducted　through　organizational　learning.　©　2012　IEEE.