The embodiment of the invention relates to a text sequence modification positioning method and device and electronic equipment. The modification positioning method of the text sequence comprises the following steps: modifying an original text sequence for multiple times; generating an Nth modification list based on the text sequence before the Nth modification of a text sequence after the Nth modification is completed, wherein the Nth modification list comprises modification positions and modification contents based on the text sequence before the Nth modification, and N being greater than 1;and repositioning the modification position in the Nth modification list as the modification position based on the original text sequence according to the length change of the text sequence before themodification position caused by previous modification in the text sequence before the Nth modification, and obtaining the modification list based on the original text sequence in the Nth modification. According to the modification positioning method of the text sequence, the modification list of the modification content of each modification based on the original text sequence is generated, and the working efficiency is improved.