The invention discloses a manipulator fixture. The manipulator fixture comprises a base, wherein a first sliding block and two second sliding blocks perpendicular to the first sliding block are arranged on the base; the two second sliding blocks are symmetrically arranged by taking the first sliding block as a center; the first sliding block and the second sliding blocks are respectively connected with driving mechanisms;, an inclined supporting surface is arranged on the first sliding block; the second sliding blocks are connected with rubber sucking discs through movable joints; a plurality of negative-pressure sucking pipes are arranged on the rubber sucking discs; throttling holes are formed in the negative-pressure sucking pipes, and the air inlet sides of the throttling holes are connected with cutoff plugs through reset springs. The manipulator fixture can improve the defects of the prior art, improve a clamping structure and improve the applicability to workpieces of different shapes.