High frequency board dielectric material has the following characteristics 1. It has the characteristics of small signal transmission loss, short transmission delay time and small signal transmission distortion. 2, has excellent dielectric properties (mainly DK, DF). Moreover, this dielectric property (DK, DF) maintains its stability under environmental changes in frequency, humidity, and temperature. 3. High-precision control with characteristic impedance (Zo). 4, has excellent heat resistance (Tg), processability and adaptability.