A belt cleaner device is provided in which assembling of a frame and a cleaner head may be performed easily and quickly. A belt cleaner device comprises a frame 3 and one or more cleaner heads 1. The frame 3 includes a support face (3a) on its upper surface, and a support hole (33) through the frame. The cleaner head (1) includes a contact face (14) on its undersurface, and an anchor (16) projecting downward from the contact face (14). The cleaner head (1) is supported so as not to be rotated about the running direction of the belt by contacting the contact face (14) and the support face (3a) with each other. The cleaner head (1) is fixed to the frame (3) by fixedly inserting the anchor (16) in the support hole (33). The cleaner head (1) further provides a concave (21) in at least one of the front and rear walls (13) (15) to form a strike seat (22) at the bottom of the concave (21). The strike seat (22) is struck with a hammer or the like so that the anchor (16) is pressed and inserted in the support hole (33).