Provided is a control method of a washing machine capable of suppressing generations of vibrations and noises due to eccentricity of a washing tub and capable of effectively avoiding delays of operation time. The control method of the washing machine (1) of the present invention in a dehydration process includes: an unbalanced position detection step (SP8) for detecting an unbalanced position (N); a balancer selection step (SP8) for determining a baffle plate (7) which requires for water injection; a first water injection step (SP11) for injecting adjusted water to the baffle plate (7) farthest away from the unbalanced position (N) by a water supply valve (X) when water needs to be injected to at least two baffle plates (7); an unbalance amount detection step (SP12) for detecting a transition of the unbalance amount (M) of the washing tub; and a water injection switching step (SP18) for switching the water injection from the water supply valve (X) to a water supply valve (Z) when the unbalance amount (M) dete