The utility model relates to a negative ion curling rod structure, which mainly comprises a handle and a heating rod combined with the handle.The handle is provided with a floating protrusion, a release hole at the floating protrusion, and a circuit structure and a negative ion element inside the handle. The negative ion element is located at the floating protrusion, and the heating rod is composed of a round pipe and a clip. The clip is provided with a trigger device and a semiconductor heating element inside the round pipe.When in use, use the trigger device to connect the clip, firmly clamp a certain amount of hair on the periphery of the heating rod, with the use of positive and reverse direction, you can get a variety of curly hair styles, and it is beneficial to release negative ions from the release hole to spray around the heating rod to produce a protective effect, so as to avoid static electricity, dryness, bifurcation and fracture of the hair, and it is beneficial to the modeling.一種負離子捲髮棒結構,主要係包含握柄及結合於該握柄之發熱棒。其中,該握柄係設有一浮突部,於該浮突部設有釋出孔,握柄內部係設有電路結構及一負離子元件,該負離子元件係置於該浮突部,發熱棒係由圓管及夾片所組成,於該夾片設有扳動裝置,並於該圓管內部設有半導體發熱件。於使用時利用扳動裝置連動夾片,將適量頭髮牢固地夾持在發熱棒周面,搭配正、反轉之運用,可獲致多樣化捲髮髮型,且可有利釋出孔釋出負離子噴到發熱棒周邊產生保護作用,從而可避免頭髮產生靜電、乾燥、分岔斷裂且利於造型。