The invention discloses a full-automatic deceleration clutch for a washing machine and relates to the technical field of washing machines. The full-automatic deceleration clutch is mainly composed of an input shaft, an output shaft, an output shaft sleeve, an input shaft sleeve, a brake wheel and a dual drive gear mechanism installed in the brake wheel. The input shaft, the output shaft sleeve and the output shaft are respectively connected with the dual drive gear mechanism, and the brake wheel and the output shaft sleeve are in reverse directions, are driven in a bi-directional mode in proportion, repeatedly swing and rotate and perform relative strong-force twisting. On dehydration working conditions, by locking effect of a clutch device, the output shaft and the output shaft sleeve can be automatically combined with each other and perform high-speed unidirectional continuous rotation simultaneously, and centrifugal dehydration is performed. The full-automatic deceleration clutch is simple in structure, the performance is improved on the basis of a deceleration clutch of a conventional washing machine, a structure of a control system is simplified, the noise of the washing machine is lowered, the effect of the washing machine is improved, and the service life of the washing machine is prolonged.