The invention discloses an interior wall panel for a fabricated building. The interior wall panel comprises wall panel bodies. A row of through holes is formed in the top end of each wall panel body,and each through hole penetrates through the bottom end of the corresponding wall panel body. Two steel pipes are arranged at one end of the corresponding wall panel body, the steel pipes are separately inserted into the through holes in one end of the corresponding wall panel body, and the hollow portions of the steel pipes and the through holes are provided with cement paste. The interior wall panel is suitable for a low-rise fabricated building with three layers or less. On the one hand, the steel pipes and the wall panel bodies can be used in combination, so that the wall panel bodies canreduce the design load of steel structures, and the firmness and space utilization rate are improved in the case of reducing the amount of the steel structures; on the one hand, the sound resonance isreduced, the water resistance and the fire resistance are effectively improved, and meanwhile, deformation is not prone to occurring; on another hand, the structural strength and the sound insulationperformance are improved, and weathering, cracking, deliquesce and pulverization are not prone to occurring; and the interior wall panel for the fabricated building has the beneficial effects that the installation time is short, the process is simple and the cost is saved.