The utility model discloses an energy-saving clutch for a switch electric appliance mechanism, which is provided with a driving crank arm on a driving wheel, and the driving crank arm tightly pushes a fixing ratchet on a driven wheel, under the function of a spring, so the driven wheel is driven to rotate following the driving wheel. When the driven wheel rotates in position, a pin presses the driving crank arm to move, causing the driving crank arm to be lifted and be separated from the ratchet on the driven wheel, so the driving wheel is caused to continuously rotate under the inertial function, and the driven wheel keeps not to move. The utility model solves the problems that the existing clutch has poor reliability and complicated technology, and has the advantages of high reliability, simple technology and reliable operation.