The invention discloses a layout structure for an incinerator furnace wall of a household waste incineration power plant. The incinerator furnace wall for household waste incineration adopts a three-segment mechanical reciprocating grate; the incineration furnace wall body is divided into different areas according to the functions of the furnace wall; fireproof and heat insulation materials corresponding to the area characteristic are combined and arranged in each area, so that the normal operation of the whole waste incinerator is maintained. Besides, a local high-temperature area inside the incinerator is reduced on the premise that the combustible substance in the waste in a furnace sufficiently burns out, and the ash content in the combustible substance is constrained to become liquid state in a softening manner, so that the serious coking phenomenon of the furnace wall in the combustion segment grate high-temperature area is effectively reduced or prevented, and the furnace shutdown situation due to coking inside the incinerator is reduced. Compared with an incinerator with a heat insulation furnace wall structure, the coking removing cycle of the incinerator interior can be extended to 6 months or longer from 4 months due to an air-cooling wall, moreover, the service life of the incinerator can be prolonged by more than 10%.