The utility model relates to an anti-scald cover of a switch cabinet heater. The body is provided with a large number of long and thin heat dissipation holes so that the heat dissipation effect can beguaranteed, the temperature of the anti-scalding cover can be reduced, the anti-scalding cover, the bolts, the nuts, the supporting columns and the gaskets are all made of insulating materials, afterthe installation mode is improved, the surface temperature of the anti-scalding cover can be controlled to range from 30 DEG C to 40 DEG C, the anti-scalding function can be effectively achieved, andinsulating distance cannot be affected. The anti-scalding cover and the heater are separated through the ceramic supporting column, contact between the anti-scalding cover and the heater is guaranteed, the distance between the anti-scalding cover and the heater is increased, and the heat insulation and heat dissipation effects can be better achieved.