The invention discloses an experimental box for detecting heating intensity of a tile, the experimental box comprises an experimental box body, the side of the experimental box body is provided with a high pressure sealing cover, the side of the high pressure sealing cover is provided with an electromagnetic lock, the top surface is provided with a display screen, the bottom of the display screen is provided with a control panel, one side of the control panel is provided with a temperature adjusting knob, the control panel is internally provided with a data processing chip, the bottom of the temperature adjusting knob is provided with a timer, the bottom of the timer is provided with an indicating lamp, the internal wall of the high pressure sealing cover is provided with a first infrared detector, the first infrared detector is capable of pre detecting the to-be-tested tile to determine whether the tile conforms to basic rules, so that inferior tiles used in experiments can be avoided, large errors of experiment results can be avoided, a second infrared detector, a temperature sensor, the data processing chip and the timer can be used for high temperature experiments of the tile, when the tile cracks, the temperature at the moment is recorded, and the heating intensity is calculated.