To make only a brush part of a brush belt conveyor a freely attachable, detachable and exchangeable unit type, to suppress generation of noises and to carry even an extremely small-sized product.

In a brush unit type belt conveyor for carrying products after working in plate working machines such as a turret punch press and a shearing machine, members 1a, 1b of L-shapes in cross section are made a member for fixing 1 having a cut-out part in the longitudinal direction by turning the members 1a, 1b upside down in longitudinal direction narrow and long shapes in a width direction of a belt Cb for carrier and oppositely disposing the members 1a, 1b at a desired interval by placing bent parts at the inside, on an upper surface of the belt Cb for carrying. A base Be made of a narrow and long planar body in which brushes Br are arrayed and planted at desired pitch is made as a brush unit BY. In the brush unit BY, only the brush Br part of the brush unit BY is projectingly provided via the cut-out part of the member for fixing 1 and is made freely attachable, detachable and exchangeable for the belt Cb constituting the belt conveyor via the member for fixing 1.