The operation of Taobao Express after changing the track must first select words accurately, find words with high click-through rate and low competition in the new track, and set reasonable bids. Secondly, optimize the creativity according to the characteristics of the track, highlight the advantages of the product, and attract buyers to click. At the same time, do a good job of crowd targeting and optimization, improve the accuracy of advertising, and reduce invalid clicks. Finally, through data analysis and timely adjustments, continuously optimize the delivery strategy and improve ROI.