An adhesive tape pen, comprises essentially a pen casing, a pen clip, adhesive tape rolls and an ink cartridge. The adhesive tape rolls are provided within the pen casing, and are fixed within the pen casing by a central shaft in a manner that the rolls can rotate by an external pulling force. A slit is provided in the pen casing for cutting the adhesive tape. The ink cartridge can be exposed by rotation of the front portion of the pen casing and thus can likewise be used for writing. The adhesive tape pen has functions of writing and tape sticking.