The invention relates to an axial follow-up space loading device. The axial follow-up space loading device comprises a counter-force support, a vertical loader, a structural element, a counter-force pressing plate, a spherical hinge and a buttress, wherein the bottom end surface of the counter-force pressing plate is a concave spherical surface; the spherical hinge is composed of an upper connecting body, a lower connecting body and a middle steel ball, the top end surface of the upper connecting body is a spherical surface which corresponds to the concave spherical surface of the counter-force pressing plate, the lower end surface of the upper connecting body and the upper end surface of the lower connecting body are respectively provided with a groove, and the middle steel ball is arranged between the two grooves; the upper connecting body and the lower connecting body of the spherical hinge are connected through the middle steel ball and rotate relative to each other, and the lower connecting body is fixedly arranged on the buttress; the lower part of the buttress is fixedly connected with the vertical loader, and the vertical loader is fixedly connected with the top end of the structural element on the ground. The axial follow-up space loading device provided by the invention has the advantages of reasonable structure, low cost, reliable and stable installation and convenience in use, and can axially load the structural element in a follow-up space manner under the action of multi-dimensional horizontal load.