Flame retardant property testing device

The invention discloses a flame retardant property testing device. The flame retardant property testing device comprises a sealed box body, a placing frame and an ignition mechanism, wherein the placing frame is used for placing an object to be detected in the box body. A gas supply channel is arranged on the box body and is connected with a combustion-supporting gas storage mechanism; the placing frame is obliquely placed at the upper part in the box body; the placing frame is of a screen type structure made of refractory materials, and an anti-falling part made of the refractory materials is arranged on the placing frame. The box body is provided with a placing port for a to-be-detected substance to enter and a fire inlet for an ignition mechanism to enter, and sealing structures are arranged at the placing port and the fire inlet. The device can meet flame retardant performance testing of various types of flame retardant materials at the same time, and is wide in application range and easy to apply and pop