The invention discloses the manufacturing technology of a high-count high-density yarn-dyed double mercerizing gradual change home textile fabric. The technology comprises the following steps of S1, making a yarn, successively carrying out blowing, cotton carding, pre-drawing, lap forming and doubling, combing, drawing, roving, spinning and spooling on a long staple cotton fiber and making the yarn; S2, bleaching and dyeing, successively carrying out singeing, alkali leaching and mercerizing, washing, and drying on the yarn, dyeing the dried yarn into the 11 gradient colors of warp yarns and the 4 colors of weft yarns, and carrying out dewatering, sizing, desizing, drying and waxing ;S3, weaving, cyclically arranging the 11 kinds of warp yarns in the gradient colors, and vertically interweaving with the four colors of weft yarns to form a fabric, and carrying out alkali leaching and mercerizing, slashing and drying the fabric; and S4, arranging, and successively carrying out bleaching,sizing, pre-shrinking and rolling on the dried fabric. The produced fabric has gradual change light and shadow and a strong three-dimensional effect. The inner index and the appearance quality of thefabric meet a first-class product requirement stipulated in ''national standard matching bedding''.