Abstract: In that paper,I expatiated on the course of development and status quo of SIPOF and GIPOF at home and abroad,and introduced the application in LAN,CAN and OFS.As a guided-wave media,plastic optical fiber(POF) has gained an increasing attention in the world for its unexampled merits(easy fabrication, low cost, high plasticity and so on), comparing with silicon optical fiber and cable.Applications of POF in LAN,CAN and OFS were analyzed and summarized.The result indicates that applications of POF are limited by its transmission loss. The advice for how to raise the technical level of POF in China was brought forward at the end of the paper.