In　this　paper,　the　active　vibration　control　of　the　elastic　connecting　rod　mechanism,　which　uses　resistance　strain　gauge　as　its　sensor,　which　uses　piezoelectric　component　as　its　driver　and　which　is　based　on　adaptive　filtering　technique,　is　studied　experimentally.　And　the　principle　of　piezoelectric　driving,　and　the　constitution　of　control　system　are　discussed　in　the　paper.　The　result　of　experiments　indicates　that　the　effect　of　active　vibration　control　is　good.