Modular mecanum wheel hub, including hub body and a plurality of roller support frame, the rim of hub body on be equipped with the joint, the joint uses hub body axis to be circumference array distribution as the central line, the joint just is on a parallel with the side plane of hub body axis and locates the planar constant head tank that should incline with at least item along hub body axial on locating the hub body, the upper end of roller support frame is equipped with the roller shaft hole, and roller support frame lower extreme is equipped with the locating piece, and the extending direction and the roller shaft hole axis direction of locating piece constitute an oblique contained angle, every joint hookup one on the rim the roller support frame, in the locating piece of roller support frame inlayed the constant head tank on the disposed on rim, the roller support frame was fixed with the hub body, the utility model discloses a split type integrated configuration handling ease is adopted the location to inlay and is established the structure and guaranteed the machining precision, and the roller support frame that can use different dimensions and hub noumenon group synthesize different dimensions's mecanum wheel hub.