The invention relates to a robot in the automation equipment field, in particular to a heavy-load conveying robot. A body provided with a worm wheel is installed on a base. A left arm and a right arm are both connected with the body through parallelogram mechanisms. One side of each parallelogram mechanism is rotatably connected with the body, and the other side of each parallelogram mechanism is hinged to one end of the left arm or one end of the right arm. A worm meshed with the worm wheel is installed on each parallelogram mechanism, and the worms are driven through a worm motor. A cylinder driving the left arm or the right arm to go up and down is installed on each parallelogram mechanism. The other end of the left arm and the other end of the right arm are rotatably connected with an end effector vertical rotating driving motor. The output end of the end effector vertical rotating driving motor is provided with an end effector wrist joint driving motor. The output end of the end effector wrist joint driving motor is connected with an end effector. The heavy-load conveying robot has the advantages that parallel robots are good in positioning accuracy, high in rigidity, simple in structure, and small in occupied space and the like.