The invention belongs to the technical field of textile printing and dyeing, and relates to a dyeing and finishing process of a four-sided elastic functional fabric containing a stock-solution-coloring polyester cotton tencel ammonia multi-fiber component. The dyeing and finishing process comprises a pretreatment process, a dyeing process and a post-finishing process, and a dyeing solution in thedyeing process is prepared from a 3-13 g/L active dyeing solution and a 10 g/L anti-migration agent; a color fixing solution is prepared from 150-250 g/L sodium chloride and 20-30 g/L sodium carbonate; a softening treatment solution in the post-finishing process is prepared from a 40 g/L softening agent, an 8 g/L antistatic agent and a 10 g/L buffering solution. The dyeing and finishing process ofthe four-sided elastic functional fabric containing the stock-solution-coloring polyester cotton tencel ammonia multi-fiber component has the advantages that stock-solution-coloring polyester and tencel are added, and through the selection of the color fixing solution, the dyeing agent and the softening treatment solution, the obtained four-sided elastic fabric has good elastic properties in bothwarp and weft directions, high color fastness and good softness; by means of the dyeing and finishing process, the dyeing procedure is easy to operate, the dyeing and finishing process is economicaland environmentally friendly, and the product quality is good.