The invention belongs to an electric heating rod distribution apparatus for a denitrification fluidized bed. The electric heating rod distribution apparatus comprises outer layer electric heating rods, middle electric heating rods, inner layer electric heating rods, an upper distribution plate, a gas chamber and a lower distribution plate, wherein the upper distribution plate, the gas chamber andthe lower distribution plate form a closed space, the upper distribution plate and the lower distribution plate are respectively provided with through holes, and the outer layer electric heating rods,the middle electric heating rods and the inner layer electric heating rods are respectively fixed on the outer layer, the middle and the inner layer of the upper distribution plate and the lower distribution plate. According to the present invention, the built-in electric heating is used, such that the control is easy compared with the molten salt heating and the external electric heating, the heat utilization rate is high, the influence of the damage of the single electric heating rod on the whole heating efficiency is low, and the damage of the single electric heating rod cannot cause production stop; and the electric heating rods are fixed on the distribution plates through the threads, and the upper distribution plate can be disassembled, such that the whole electric heating apparatuscan be separated from the denitrification fluidized bed so as to conveniently perform the maintenance work.