【摘要】Intellectual Property strategy is an important strategy selection as Japan entered the 21th.Century.The key problem for economic depression in Japan is having not established the modern industry structure in time after the traditional manufacturing moving out.The important reason for Japan's economic miracle is the hitchhike R&D input structure and the special R&D structure mainly depends on big company.During the period of transferring to knowledge economy, the traditional dominant reason for miracle becomes the restricting reason,for competition in knowledge economy is focusing on the intellectual property right system and the original creation in R&D rather than hitchhike.