Deep　squat,　bench　press　and　hard　pull　are　important　ways　for　people　to　improve　their　strength.　The　use　of　sensors　to　measure　force　is　rare.　Measuring　strength　with　sensors　is　extremely　valuable　for　people　to　master　the　intensity　of　exercise　to　scientifically　effective　exercise.　To　this　end,　in　this　paper,　we　used　a　real-time　wireless　motion　capture　and　mechanical　evaluation　system　of　the　wearable　sensor　to　measure　the　dynamic　characteristics　of　30　young　men　performing　deep　squat,　bench　press　and　hard　pull　maneuvers.　The　data　of　tibia　were　simulated　with　AnyBody　5.2　and　ANSYS　19.2　to　verify　the　authenticity.　The　result　demonstrated　that　the　appropriate　force　of　the　deep　squat　elbow　joint,　the　hip　joint　and　the　knee　joint　is　40%　1RM,　the　appropriate　force　of　the　bench　press　is　40%　1RM　and　the　appropriate　force　of　the　hard　pull　is　80%　1RM.　The　external　force　is　the　main　factor　of　bone　change.　The　mechanical　characteristics　of　knee　joint　can　be　simulated　after　the　Finite　Element　Analysis　and　the　simulation　of　AnyBody　model　are　verified.