The computer industry has developed in China for more than ten years. At present, there are more than 50 million computer users in China, and the number of computers reflects the development prospect of the computer maintenance industry. Computers are electronic products. Based on their own characteristics, they will inevitably break down after being used for a long time. Judging from the current domestic consumption level, it is a good choice to put it back into use after repair. A few years ago, computer maintenance was a manufacturer's business. Maintenance is for sale and is a part of after-sales service. Nowadays, service outsourcing is popular in IT industry, that is, a certain service is contracted to a specialized enterprise, and the after-sales service of computer manufacturers is also transitioning to this mode, which is the result of social division of labor. Now, computer maintenance is no longer just for sales, but has become a special industry independently, serving the whole society. The computer maintenance industry has gone from behind the scenes to the front desk, becoming a relatively independent, socialized and emerging industry with a certain scale, and the market is also expanding step by step.