This　paper　analyzes　the　current　R&D　investment　in　China,　and　then　uses　the　model　of　coordination　degree　of　composite　system　to　measure　the　degree　of　coordination　between　the　economic　development　and　R&D　investment　in　China　from　1992　to　2006.　Comparison　between　China　and　major　developed　countries　are　also　analyzed.　The　result　shows　that　the　coordination　degree　of　the　composite　system　in　China　is　lower　than　major　developed　countries.　But　there　is　a　good　developing　trend　in　China.　At　last,　it　puts　forward　the　proposal　about　the　R&D　investment　with　the　development　of　our　economic.