The processing,heat-resistance and mechanical properties of novel modified cyanate ester ware evaluated
in this article. The dielectric property and mechanical properties of cyanate ester matrix composite materials were
also studied. The results showed that the cyanate ester adapted to madding prepreg by hot-melt methods because of its
good process. All of the cyanate ester and composite materials had nice mechanical properties and could be used under
180℃. The composite materials are suitable for use as for high performance microwave-transparence materials and high
frequency circuit boards.