Foundation bolt fixer

The utility model relates to the technical field of foundation bolt embedding, in particular to a foundation bolt fixer, which comprises a horizontal positioning mechanism and a longitudinal elevation adjusting mechanism arranged below the horizontal positioning mechanism. The horizontal positioning mechanism comprises a rectangular bottom frame composed of an X-axis direction sliding rail and a connecting rod and a Y-axis direction positioning clamping groove formed in the rectangular bottom frame, and X-axis scales are arranged on the X-axis direction sliding rail. The two ends of the Y-axis direction positioning clamping groove are connected with the X-axis direction sliding rails through locking mechanisms respectively, a long hole is formed in the Y-axis direction positioning clamping groove, and Y-axis scales are arranged on the two sides of the long hole respectively. The longitudinal elevation adjusting mechanism comprises a sleeve and a telescopic rod arranged in the sleeve, and the sleeve is connect