To discuss electroless silver plating without palladium, the glutaraldehyde crosslinked chitosan was acted as pretreating agent. The influence of crosslinking time, the concentration of cross linking agent and chitosan, baking temperature on the deposition rate and square resistance of electroless silver polyamide fibre was disscussed, then optimized technology was obtained. The analysis shows that polyamide fibre deposited crosslinked chitosan obtains thick and firm adherence electroless silver coating, and lower square resistance .