A construction robot for a ceiling, comprising: a robot base including an upper plate, wherein the upper plate is controlled to be elevated or lowered for anchor installation; a targeting unit mounted on the upper plate, wherein the targeting unit is controlled to move a robotic arm assembly for the anchor installation, and wherein the robotic arm assembly includes: a first robotic arm, combined with the targeting unit, on which a drill for drilling a hole into the ceiling is mounted, wherein at least part of a first elevating unit of the first robotic arm is controlled to be elevated or lowered according to information on the ceiling, a second robotic arm, combined with the targeting unit, on which an anchor bolt inserting equipment for inserting at least one anchor bolt into the hole is mounted, wherein at least part of a second elevating unit of the second robotic arm is controlled to be elevated or lowered according to the information on the ceiling, and a third robotic arm,combined with the targeting unit, on which an impact wrench for tightening the anchor bolt by engaging at least one anchor nut with the anchor bolt is mounted, wherein at least part of a third elevating unit of the third robotic arm is controlled to be elevated or lowered according to the information on the ceiling; and a loading unit, mounted on at least one of the upper plate and the targeting unit, for providing one or more anchor bolt assemblies, each of which is created by engaging the anchor bolt with the anchor nut. a robot base including an upper plate, wherein the upper plate is controlled to be elevated or lowered for anchor installation; a targeting unit mounted on the upper plate, wherein the targeting unit is controlled to move a robotic arm assembly for the anchor installation, and wherein the robotic arm assembly includes: a first robotic arm, combined with the targeting unit, on which a drill for drilling a hole into the ceiling is mounted, wherein at least part of a first elevating unit of the first robotic arm is controlled to be elevated or lowered according to information on the ceiling, a second robotic arm, combined with the targeting unit, on which an anchor bolt inserting equipment for inserting at least one anchor bolt into the hole is mounted, wherein at least part of a second elevating unit of the second robotic arm is controlled to be elevated or lowered according to the information on the ceiling, and a third robotic arm,combined with the targeting unit, on which an impact wrench for tightening the anchor bolt by engaging at least one anchor nut with the anchor bolt is mounted, wherein at least part of a third elevating unit of the third robotic arm is controlled to be elevated or lowered according to the information on the ceiling; and a loading unit, mounted on at least one of the upper plate and the targeting unit, for providing one or more anchor bolt assemblies, each of which is created by engaging the anchor bolt with the anchor nut. a first robotic arm, combined with the targeting unit, on which a drill for drilling a hole into the ceiling is mounted, wherein at least part of a first elevating unit of the first robotic arm is controlled to be elevated or lowered according to information on the ceiling, a second robotic arm, combined with the targeting unit, on which an anchor bolt inserting equipment for inserting at least one anchor bolt into the hole is mounted, wherein at least part of a second elevating unit of the second robotic arm is controlled to be elevated or lowered according to the information on the ceiling, and a third robotic arm,combined with the targeting unit, on which an impact wrench for tightening the anchor bolt by engaging at least one anchor nut with the anchor bolt is mounted, wherein at least part of a third elevating unit of the third robotic arm is controlled to be elevated or lowered according to the information on the ceiling; and a loading unit, mounted on at least one of the upper plate and the targeting unit, for providing one or more anchor bolt assemblies, each of which is created by engaging the anchor bolt with the anchor nut.