The present invention discloses a smoking electric knife pen, which comprises: a knife body, a soft exhaust pipe, and a coupling mechanism. The knife system comprises: a handle, a cutter head, a connecting wire, and a control component mounted on the handle, wherein the control component is electrically connected to the connecting wire and the cutter head respectively. The coupling mechanism is a hollow telescopically bendable tubular body, and the ends of the handle of the cutter body and one end of the soft exhaust pipe are respectively fastened. The combination mechanism is configured to further discharge the smoke generated by using the cutter body through the flexible exhaust pipe through the joint mechanism, and the surface of the joint mechanism has a plurality of waveform wrinkles, which can be stretched and contracted. The length and the effect of 360 degrees of free rotation and bending angle.本創作揭露一種吸煙電刀筆，其包括有：一刀體、一軟性排煙管、以及一結合機構。該刀體係包括：一手柄、一刀頭、一連接導線、以及安裝在該手柄上的一控制元件，其中，該控制元件係分別與該連接導線和該刀頭電性連接。該結合機構係為一中空可伸縮彎折之管體，其兩端分別將該刀體之該手柄尾端以及該軟性排煙管之一末端進行扣合。其特徵在於，該結合機構係可將該刀體使用時所產生的煙霧透可透過該結合機構經由該軟性排煙管進一步加以排出，而該結合機構表面具有複數個波形皺折，可具伸縮長度且達到有360度隨意旋轉及彎折角度的效果。
