Objectively speaking, high-quality after-sales service is the product of brand economy, and the after-sales service of famous brand products is often better than that of miscellaneous brand products. The price of famous brand products is generally higher than that of miscellaneous brands. On the one hand, it is based on the cost and quality of the products, and on the other hand, the after-sales service cost has been taken into account in the sales strategy of famous brand products.