Technical support is divided into pre-sales technical support and after-sales technical support. Pre-sales technical support refers to providing help when sales encounter product problems that cannot be answered; after-sales technical support refers to a form of after-sales service provided by product companies to their product users, helping users diagnose and solve technical problems that may be caused by the product if they have obvious symptoms during the use of the product.

In the contemporary 21st century, technical support has become part of the service and an important part of the company's corporate image.

Technical support is not only for the purpose of solving technical problems, but more importantly, it is to establish the image of the company in the hearts of customers, so that people will remember the image of the company, further remember the brand of the products used, and finally achieve the perfect combination of service and brand.