The rotating structure of the electric pen (2) mainly comprises a pen body and a cutter head disposed on the pen body, a retractable smoking pipe, and a rotating member. The end of the pen body is provided with an annular groove on the inner edge, and the rotating member is curved, and one end of the pen body is provided with a smaller diameter embedding portion, and the outer edge of the embedding portion is provided with a ring shape. The sleeve is provided with a sleeve portion at the other end, and a plurality of protruding ribs are disposed on the sleeve portion, and the sliding member is pivotally connected to the end of the pen body after the sliding member is embedded in the slot of the rotating member, and The sliding member can be placed in the groove at the end of the pen body for the socket of the rotating member to be sleeved, and when the electric pen is used, the pen body can be opposite to the catheter by the rotating member. The rotation causes the electric pen to rotate freely to facilitate the operation of the electric pen.一種電燒筆之轉動結構（二），主要係包含筆身及設於筆身之刀頭、可伸縮之吸煙管，以及轉動件。其中，該筆身的末端係於內緣設有一環狀之凹槽，該轉動件係呈彎狀，其一端設有較小徑之嵌置部，於該嵌置部外緣設有環狀之嵌槽，另端係設有套置部，於該套置部設有複數之突肋，俾於轉動件之嵌槽嵌置一滑動件後，使轉動件樞接於筆身末端，且使該滑動件恰可置於筆身末端之凹槽，以供於轉動件之套置部套接導管，俾當電燒筆於使用時，得以藉由該轉動件使筆身與導管呈相對之轉動，進而使電燒筆得以自由的轉動，以利於電燒筆的操作。
