The invention relates to the technical field of high-temperature-resistant adhesives, in particular to a silazane hybrid cyanate ester adhesive. The silazane hybrid cyanate ester adhesive is mainly prepared from the following raw materials in parts by mass: 100 parts of cyanate ester, 5-30 parts of silazane, 0-200 parts of solid fillers, 0-20 parts of solid pigments and 0-5 parts of chopped fibers. The silazane hybrid cyanate ester adhesive has the beneficial effects that: the silazane hybrid cyanate ester is used as matrix resin for high-temperature-resistant adhesive, so that temperature resistance and oxidization resistance of cyanate ester are improved; the silazane hybrid cyanate ester is matched with the corresponding filler to prepare the high-temperature-resistant adhesive; when the adhesive property of the cyanate ester adhesive is kept, high temperature performance of the cyanate ester is improved; and the prepared adhesive can meet requirements, on high-temperature-resistant structure adhesive, of the fields such as aviation and aerospace.