Abstract: This paper analyses the loop-forming process of the compound needles in a Multiaxial Knitting Machine. The motion of the compound needles is composed of two parts, namely the horizontal and vertical reciprocating motion in straight line，and these moving requirements could be satisfied by the multi-loop linkages. Further, the relationships between moving velocity of the yarn layers, withdrawal roll and the loop space are also studied. The researching results are provided as the basis of designing the moving requirements of the compound needles.