The present invention relates to a hairbrush. In detail, the present invention enables a fast and simple assembling as the connection structure is simple. It also facilitates circulation of the hot-air and enhances the heat conductivity as the entire body and grip of the hairbrush is made of metal. The present invention takes the following steps: each tooth of the brush (20a) is planted into where a twisted wire is located; each tooth of the brush (20a) is taken out from a hole of a metallic pipe covering the tooth of the brush (20a); For the hairbrush having the grip combined with the metallic pipe (10), supporting boards (21) are assembled into both sides of the metallic wire (20) and the metallic wire (20) is fixated inbetween the supporting boards (21); a cap (11) and a connecting pipe (12) are separately assembled into the sides of the metallic pipe (10) and the supporting boards (21) are fixated onto both sides of the metallic pipe (10); the metallic wire a grip pipe (13) is assembled into the connecting pipe (12) and fixated onto the supporting pipe (14) that will cover the joint; and an assembling grooves having hooking ball (15a) on them are fixated on the back of the grip pipe (13).
