Silicon core pipe

The utility model relates to the optical communication industry optical cable transmission field and especially relates to a silicon core pipe. The silicon core pipe comprises an outer layer (1) made of high-density polyethylene and a silicon core layer (2) made of silica gel-quality solid lubricants. Marking color bands (3) are arranged on the outer wall of the outer layer (1). The silicon core layer arranged inside the outer layer has lubrication functions and is characterized by long service lifetime, stable friction features and lasting effects. The silicon core layer is very suitable for drawing and pulling of an optical cable during an installation process. The marking color bands arranged on the outer wall of the outer layer make it convenient to identify the category of the silicon core pipe during the installation process and prevent data transmission disorder due to mistaken connection of optical cables. Furthermore, the silicon core pipe is enabled to have an attractive and elegant appearance thanks to the marking color bands.