The invention discloses a holding-clamp type measurement foot rest which is easy to operate and can effectively improve the measurement efficiency and accuracy. The foot rest comprises a base (1) and support legs (2) connected with the base (1), wherein the base (1) is ring-shaped, an opening is formed in the base (1), two transverse jackscrews (3) are distributed on the base (1), and a fixed connection device (4) is arranged at the front end of each transverse jackscrew (3); or, three transverse jackscrews (3) are distributed on the base (1), a fixed connection device (4) is arranged at the front end of the centered transverse jackscrew (3); and axes of adjacent transverse jackscrews (3) are perpendicular to each other.