The Polyterafluoroethylene (PTFE) material could be provided for a more stable of electrical properties and to applications of optoelectronics industry. The PTFE have more unique properties such as low-dielectric properties, which were useful to combine the optoelectronics and Textile technique to development of smart clothing in the future. In this paper, to prepare of porous structure of High Frequency PTFE film, the research methods, was focused on the effect of dielectric properties of PTFE film by sintering different temperature, and the effect of dielectric properties of PTFE film with different add amount of PTFE staple fiber in the structure.