The invention discloses a smearing machine with uniform coating. The smearing machine with uniform coating comprises a smearing machine body; the smearing machine body is provided with a coating box and a buffering box; the lower end of the coating box is provided with a first handle and a second handle; a switch is arranged on the right side of the first handle; the buffering box is fixed to the coating box through a first fixing column, and a second communicating tube is arranged between the buffering box and the coating box; a pumping pump is arranged on the second communicating tube; a material through tube is fixed to the right side of the buffering box through a second fixing column, and a first communicating tube is arranged between the material through tube and the buffering box; a fixing plate is fixed to the right side of the material through tube, and material guiding tubes distributed in an array mode are arranged on the fixing plate; arc-shaped cavities are connected with the right sides of the material guiding tubes, and coating rotating wheels are arranged in the arc-shaped cavities; and fixing rods distributed in the array mode are arranged around the coating rotating wheels, and coating heads are hinged to the other ends of the fixing rods. According to the smearing machine with uniform coating, manual and hand operated coating with brushes can be replaced, time and effort and labor are saved, and smearing is uniform.