It is disclosed that a labor-saving device for detection of no-load hand hoist motion, comprising a base, a stand pole, and a controller, a first cantilever beam, a second cantilever beam, a third cantilever beam, and a fourth cantilever beam being sequentially disposed in single vertical plane from top to bottom of the stand pole, which is characterized in that a electric hoist being disposed below the first cantilever beam; a pair of first guide unit being respectively disposed at two opposite laterals of the second cantilever beam; a driving unit including a motor, a stand plate, and an actuator being coaxially disposed in series from internal to external, being disposed above the third cantilever beam; and a pair of second guide unit are respectively disposed at two opposite laterals of the fourth cantilever beam. The advantages of the labor-saving device for detection of no-load hand hoist motion of the invention features as following in that: 1) The hanging location of the hand hoist being set at the lifting hook of the electric hoist, which enabling vertically regulating the position of hook to facilitate arrangement of the hand hoist; 2) It is can be achieved that changing the active wheel with a chain wheel or frictional wheel in accordance with the requirement of the friction needed by the hand hoist chain; 3) The device being provided with simplified configuration and lower cost for mass manufacture.