An automatic color mix dyeing process includes activating an automatic shaping device to shape an undyed object as a cylinder and tightening same; conveying the undyed object to a dyeing apparatus by means of spraying wherein the dyeing apparatus includes rows of spray devices, dye containers for containing dyes of different colors, each dye container being in fluid communication with the row of spray devices, a pump for moving the dyes in the dye containers to the rows of spray devices, and a control device for controlling the rows of spray devices to control a spray sequence, a spray time, and a spray quantity of dye; conveying the dyed object from the dyeing apparatus to a vapor device for color fixing wherein the dyed object is impregnated with hot vapor to obtain a finished object; cutting the tie ropes; and conveying, washing and drying the finished object.