The invention discloses a displayable infrared detector on a front baffle plate of a helmet. The displayable infrared detector comprises a display device arranged in the front baffle plate of the helmet, and a detector arranged in an interlayer on the top end of the helmet, wherein the display device comprises a transparent display board and a signal transmission lead connected with the display board, the detector comprises a shell and a fixing board arranged on the bottom end of the shell, a bonding layer is arranged on the surface of the fixing board so that the fixing board is bonded and fixed to the interlayer on the top end of the helmet through the bonding layer, a projecting spherical infrared lens is arranged on the surface of the shell, a through hole is correspondingly formed in the helmet, the spherical infrared lens is embedded and connected in the through hole, an infrared sensor is arranged at the position, just opposite to the spherical infrared lens, inside the shell, a microprocessor is arranged on the rear side of the infrared sensor, a solar photovoltaic panel is arranged on the top end of the shell, embedded and connected in a square hole correspondingly formed in the top end of the helmet, and connected with a storage battery inside the shell, the solar photovoltaic panel and the infrared sensor are connected with the microprocessor through leads, and the display board is connected with the microprocessor through the signal transmission lead.