The　paper　deduced　the　formula　of　contact　ratio　of　cam　shock　wave　rolling　movable　teeth　transmission.　It　also　analyzed　configuration　parameters＇　influence　on　the　contact　ratio,　the　working　teeth　profile　and　curvature　of　teeth　crest　of　center　wheel.　It　shows　that　the　driving　contact　ratio　is　and　curvature　of　teeth　crest　of　cam　shock　wave　rolling　movable　teeth　transmission　all　increase　with　the　increasing　of　driving　ratio.　The　bigger　the　axes＇　difference,　the　bigger　the　contact　ratio　is　and　the　smaller　the　curvature　of　teeth　crest　is.　The　smaller　the　axes＇　difference,　the　flatter　the　center　wheel　working　profile　is.　It　has　greater　influence　on　center　wheel　working　teeth　profile　and　curvature　of　teeth　crest　to　change　the　difference　of　axis　than　to　change　the　axis＇　size.