Streamline shape information pen

The utility model relates to a streamline form information pen, which comprisess a penholder, a transparent penholder, a pen core, a pen point that is in detachable joint with the penholder, a spring that is arranged between the pen core and the pen point, and a drive mechanism, wherein, the pen core is arranged in a rotary rod which is labeled with information, the side face of the penholder is provided with a window for displaying the information, and the drive mechanism which drives the rotary rod to rotate comprises a driving gear that is in matching rotation with the rotary rod, and a lifting rotary wheel that is positioned at the upper end of the penholder and meshed with the driving gear. The utility model is characterized in that a reset spring is arranged between the lifting rotary wheel and the driving gear. Owing to the arrangement of the reset spring, the lifting rotary wheel can be reset in time under the action of the restoring force of the reset spring, so that users can read information or write in time. Additionally, the outside of the pen point is sheathed with a sheath which has recesses, so that the information pen can be held comfortably and can not be easily slid. The singly windowed structure enables the window to be opened larger, so that more pattern and character information on the rotary rod can be displayed to meet people's requirements on the information pen.