The use of a large number of wires in annular Z-pinch implosions has enabled the generation of strong X rays, which is significantly affected by the structure of the wire-array and the assembly precision of the wires.In order to obtain more symmetrical and straight wire-arrays, we studied the Z-pinch wire-array micro assembly station, and developed an experimental facility which was based on machine vision,micro force sensor and precision motion system.The station successfully accomplished the assembly of a nested wire-array with 5 μm tungsten filaments and the tension precision reached 0.002 N.