The invention discloses a shoe washing tool, comprising a casing connector, a piston cylinder, two semilunar plates and two shoe soaking devices. The casing connector is connected with the piston cylinder. The two semilunar plates are connected with two sides of the piston cylinder, respectively. The semilunar plates are connected through a hinge and provided with the shoe soaking devices. The shoe washing tool has the function of soaking the uppers of shoes, overcoming the defect that manually spreading a detergent to the inner surfaces of shoes is inconvenient; a shoe is held within a shoe to facilitate the washing of the shoe; the shoe washing tool is reliably placeable during shoe washing; openness can be adjusted according to different needs, and the shoe washing tool is more universal; the shoe washing tool has a function of fixing the shape of a shoe, overcoming the defect that the shape of the shoe is easily destructed in conventional washing; the shoe washing tool is convenient to operate and safe and reliable.