A multifunctional intelligent exercise device includes a connecting member coupled to the impingement unit or the reciprocating unit of the exercise training machine, a load cell gravity sensor coupled to the connecting member for detecting a force transmitted by the impingement unit or the reciprocating unit of the exercise training machine via the connecting member when the user operates the exercise training machine, a motor coupled to the training machine via the connecting member, a motor controller electrically connected to the motor, and a microprocessor electrically connected to the load cell gravity sensor and the motor controller, wherein the connecting member and the motor are combined to form a variable resistance unit, and the working mode of the variable resistance unit can be controlled by the microprocessor through the motor controller according to the detection mode set by the exercise training machine.一種多功能的智能運動裝置，其包括：一連結構件，連結至運動訓練機台之衝擊單元或是往復運動單元；一荷重元重力感測器，耦合至連結構件，用以偵測一使用者操作運動訓練機台時，由運動訓練機台之衝擊單元或是往復運動單元經由連結構件所傳遞之力量；一馬達，經由連結構件與運動訓練機台之衝擊單元或是往復運動單元連結；一馬達控制器，電性連接至馬達；一微處理器，與荷重元重力感測器及馬達控制器電性連接；以及其中連結構件及馬達結合組成一可變阻力單元，可變阻力單元之運作方式可以根據運動訓練機台之設定之偵測模式，由微處理器透過馬達控制器來控制。
