The present invention relates to an automatic shoe cleaning device, which includes: a housing having a shoe inlet through which a foot with a shoe is inserted and a foot plate where the shoe is placed; a base frame disposed linearly movably inside the housing; a first brush assembly having a pair of side brushes polishing both sides of the shoe at both sides ahead of the base frame and a first spring supplying elastic force to the side brushes; and a second brush assembly having an upper brush polishing the top of the shoe behind the first brush assembly and a second spring supplying elastic force to the upper brush; and a shoe polish supply unit supplying shoe polish to the upper brush, in which as the upper brush moves backward and contacts the pair of side brushes, the shoe polish supplied to the upper brush is transferred to the pair of side brushes, whereas as the upper brush move forward to polish the shoe, the upper brush is separated from the pair of side brushes by the elastic force of the second spring, whereby it is possible to uniformly apply the shoe polish over the entire surface of the shoe and prevent the shoe polish from sticking to the pants.