The invention of ignition and combustion-stabilizing apparatus for powder coal boilers, as well as the relevant utilization method, belongs to the fields of thermal machines and method. The invention relies on electromagnetic, laser, integrated combustion-stabilizing, and an elegant heater between the blower and coal miller, in order to form technical keys in the integrated method. A delivery powder coal barrel, which does not influence the magnetic field, is made into a electromagnetic heating type burner with a coil cylinder that is composed of winding channels and embedded with coils. The conveyor cylinder is fastened on the optical maser; laser beams fulfill powder coal gasification, heating, ignition and non-stage combustion proceedings, in order to form a laser heating ignition type burner. Pipelines are used for tightening a blower and a heater, the heater and a coal miller, a coal bucket and the coal miller, and the coal miller and the burner; the burner is fastened to the fuel gun heater and tightened with the powder coal boiler, so as to form the ignition and combustion-stabilizing apparatus for powder coal boilers. Through air blow, coal delivery, ignition, combustion, residual heat utilization and combustion-stabilizing combustion, the apparatus, can form an operation method for the ignition and combustion-stabilizing apparatus for powder coal boilers. The invention adapts to ignition and combustion stabilization for all kinds of coal quality of powder coal for powder coal boilers. Different quality of coals can fulfill combustion stabilization, lower pollution and saving energy.