The utility model provides a device of short -term test inflation profiled steel structure fireproof paint inflation and heat -proof quality, it is including test steel sheet mount, test steel sheet, temperature measuring device, seat label and flame spray gun, the openly coating inflation profiled steel structure fireproof paint of test steel sheet, the dry maintenance after -fixing of process is on test steel sheet mount, flame spray gun places on fire surface face one side of test steel sheet, the face vertically contacting of its flame and test steel sheet when lighting flame spray gun, temperature measuring device connects the non - fire surface face one side at the test steel sheet, sitting label and establishing in the side of test steel sheet, the perpendicular nevertheless contactless of its face with the test steel sheet is placed. The utility model discloses a connect temperature measuring device, the non - fire surface face temperature variation of monitoring steel sheet at the non - fire surface face of test steel sheet to heat -proof quality of this survey fireproof paint, its inflation multiplying power is judged to expansion line when sitting label record fireproof paint fire surface, realizes the short -term test of inflation profiled steel structure fireproof paint inflation and heat -proof quality.