A pickle with sweet and sour taste and a preparation method thereof relate to a food and a preparation method thereof. The invention solves the problems of high cost and long production cycle of sweet and sour pickles at present. The invention consists of a main material and an ingredient liquid; The main ingredient accounts for 58-6 1% of the total weight of kimchi, and the rest is ingredient liquid; The main ingredients are pepper, pepper, fresh garlic or ground beetle, and the ingredients are water, acetic acid, citric acid, sweetener, saccharin sodium and preservative. The method comprises the following steps: 1, selecting materials; Second, pickling; Thirdly, the pickled main material salt water is drained; Fourthly, washing the main materials treated in the third step with clear water, and draining water; (5) using the ingredient foam treated in step (4) as the main material; 6, selecting the semi-finished product processed in step 5; Seven, packaging. The product of the invention has the functions of stimulating appetite and eliminating boredom. The method has the advantages of simple operation, short production cycle and low cost. The invention is especially suitable for pickling sweet and sour pepper, sugar garlic and grinding rings.