The invention relates to a clutch labor-saving operating mechanism of a walk-behind cultivator, which comprises a clutch fork transmission arm, a clutch cable, a clutch tension spring, a pulley and an adjustment mechanism. The improvement is that a pulley is installed on the clutch fork transmission arm, the clutch cable is installed on the pulley, the clutch fork transmission arm is connected through the pulley, and the end of the clutch cable bypasses the pulley and is fixedly connected to the gearbox case. In addition, an adjustment mechanism is designed between the clutch fork transmission arm and the clutch fork shaft for connection. The operating mechanism utilizes the principle that the moving pulley saves half the effort to reduce the operating force of the operator's hand, thereby achieving the purpose of labor saving, thereby reducing the labor intensity of the operator and improving the service life of the clutch cable. At the same time, the structure is optimized by adopting the adjustment mechanism, the clutch cable holder, the wire tube holder, etc., so that the device has the advantages of simple structure, convenient installation and adjustment, and the like.