The effect of attracting attention, strengthening things and expanding influence achieved by the appearance of celebrities, or the psychological phenomenon of people imitating celebrities are collectively called celebrity effect. Celebrity effect does not directly participate in commercial activities, but it helps to strengthen the image of the borrower of celebrities. Celebrities are passively imitated or borrowed. China began to appreciate feet from Li Yi in the Southern Tang Dynasty, so that foot binding was popular in later generations until the Republic of China. The reason is also the celebrity effect of Li Houzhu's favorite princess. She tied her feet with Zi Ling, but her feet were small. "There are good things in the world, there must be bad things", so women are competing to follow suit. The allusion of "learning from the east and using the west" is also caused by the celebrity effect of the teacher.

People usually have great respect for celebrities. In commodity sales, operators can use consumers' worship of celebrities to sell commodities. The specific methods are as follows: Invite famous writers to meet customers in bookstores and sign their books as souvenirs. Generally speaking, the promotion is very good. Inviting famous actors to perform in shopping malls can attract a large number of customers, and business will naturally flourish. Invite celebrities to write and draw pictures on goods and packaging. When the relevant leaders go to the mall to understand, they will stay at the scene and stand in front of the counter, which will attract a large number of people into the store.