The invention relates to a winding drum support with an adjustable width. The winding drum support with the adjustable width comprises side plates, wherein both the left side and the right side of each side plate are bevel edges, a step surface is arranged at the upper end of each side plate, a first arc groove is formed in a first step of each step surface, a second arc groove is formed in a second step of each step surface, a third arc groove is formed in a third step of each step surface, a screw is welded to the left bottoms of the inner sides of the side plates, a screw is welded to the right bottoms of the inner sides of the side plates, the screws are sleeved with sleeves, the length of each sleeve is larger than twice the length of the corresponding screw, internal threads are arranged on the inner side of each sleeve, and the other end of each sleeve is connected to the screw at the corresponding position of the other side plate. According to the winding drum support with the adjustable width, due to the fact that the width is adjustable, the support can be used for supporting winding drums of different types in a classified mode; due to the fact the two side plates are directly supported by the ground, the defect that breakage occurs easily due to the adoption of a cantilever supporting method is overcome; due to the fact that all the arc grooves in the upper ends of the side plates are in contact with extending-out shafts of winding drums, the phenomenon that the winding drums still idle for a long time after the halt is avoided, unnecessary waste is reduced, and the winding drums can be supported more firmly and more reliably.