For researching the fireproof and thermal insulation feature of fireproof and thermal insulation coating of solid rocket, analyze engine fast cook-off test. Based on the feasibility and practical conditions, design the engine shell for fast cook-off test. The ZS series of fireproof and thermal insulation coatings were compounded and sprayed on the surface of the test engine to perform the fast cook-off test. Separately analyze the test results and temperature field by test. The test result show that the fireproof and thermal insulation coating has a delay effect on the internal surface temperature of the test engine, and the delay time is ZS hybrid type>ZS1000>ZS2000.