Chang'an native cloth tie-dyeing is a unique handicraft in the traditional printing and dyeing technology of the Huishui Buyi people. It is mainly spread in Chang'an Township, Dayin Township, Wangyou Town and surrounding areas, and is basically self-produced and self-used. The dyeing process of native cloth tie-dyeing is basically the same as that of maple dyeing and batik, but the printing technique is a self-contained system with unique characteristics. According to the survey of native cloth tie-dyeing craftsmen, the inheritance history has been at least more than a hundred years. In the Chang'an area, the custom of folding white cloth and then dyeing it into single-sided cloth has a long history. The principle of native cloth tie-dyeing printing is to sew the veins of the floral decoration with needle and thread so that the dye cannot penetrate the seams, which is similar to the principle of dyeing monochrome cloth. Tie-dyeing uses self-spun and self-woven native cloth, which is generally woven on a four-pedal loom. The texture of the cloth is in the shape of a Chinese character "回", and the local people call it granular cloth. When drawing a pattern, first spread the native white cloth flat on the table or stone slab, and improvise various patterns with a ballpoint pen or colored chalk. Traditional patterns are basically flowers, birds, insects and fish. Now Chinese characters, pinyin and even English are also integrated into traditional patterns. After the pattern is drawn, use white cotton thread to thread a needle and tie a knot. Fold the cloth in half according to the veins of the pattern on the white cloth, and then fold a small edge inward at the crease. Then use the threaded needle and thread to sew along the crease. After the sew is tied, it can be dyed. Tie-dyeing also uses indigo to immerse. The processing method is to put the collected blue leaves into a vat and soak them in water for about three days and then take them out. Use a basin to stir and dissolve an appropriate amount of quicklime with water and pour it into the vat. Add one pound of homemade rice wine and stir well. After precipitation, pour out the water and scoop out the indigo at the bottom of the vat for later use. Dilute the dry indigo with water. Some people also wash and mash an appropriate amount of the rhizome of the plant Smilax glabra and put it in to make the dye color darker. After seven or eight days, it can be used for dyeing cloth. Before dyeing, soak the cloth in clean water, wring out the water, fold it and place it on a stone slab or bench to hammer it flat, then slowly put it into the vat, press the cloth into the bottom of the vat with a wooden stick, take it out after an hour and place it on a grooved wooden board, with one end of the board tilted and placed on the edge of the vat, so that the water flows into the vat along the edge of the vat. After an hour, put the cloth into the vat again for dyeing, and repeat this process many times. After two days, take the cloth out, wash it with clean water and dry it, and then repeat the above-mentioned procedure for dyeing. Until it is dyed to the desired color, then rinse it repeatedly with clean water and dry it. After the cloth is dried, gently untie the sewn thread with scissors or awl, wash it again, hammer it flat and dry it. The painted pattern is revealed, the dye penetrates very naturally, and the color of the pattern transitions naturally, which is very beautiful. Tie-dyed cloth is an indispensable and important part of the Bouyei wedding customs. With the changes of history, the development of society, and the integration of culture, the painting patterns of native cloth tie-dyeing have become richer in content. Its lines are simple and bright, and the patterns are fresh and elegant. They are mostly improvised, sketched at will, and unrestrained, highlighting the randomness of tie-dyeing pattern drawing. Huishui native cloth tie-dyeing is unique to the Buyi people. They make great efforts in "tying", which fully reflects the wisdom and talent of the Buyi people. Chang'an Buyi native cloth tie-dyeing carries the integration of local Buyi traditional art and modern civilization, and conveys the national aesthetic taste and spiritual pursuit of local Buyi compatriots. The simple and unique national handicrafts and unique painting patterns of native cloth tie-dyeing make it occupy an important position in the printing and dyeing technology of Huishui Buyi people, and therefore have high academic value, artistic value and practical value.