The ISO 9000 series of standards is a set of international standards for quality management formally issued by the international organization for Standardization (ISO) in 1987 to meet the development needs of international trade and quality management, which gathers quality management experts from all over the world and summarizes the quality management experience of developed countries with market economy. Since ISO 9000 series standards are produced on the basis of summing up the experience of countries around the world, especially developed countries, it is applicable to organizations of various types, sizes and products, and provides requirements and guidelines for enhancing customer satisfaction and improving performance, which is highly practical and instructive.

In the modern trade practice, the two-party audit has long been a common practice, but it has gradually found that there are some disadvantages: an organization usually needs to supply many different customers, and repeated two-party audit will cause a heavy burden to the organization; On the other hand, customers also need to audit the configuration team again and again for this purpose, which consumes a lot of time and labor costs. As a globally recognized quality management system certification standard, ISO 9001 certification can effectively replace the two-party audit and become the judgment basis for customers to select high-quality suppliers. In the global market, many countries have set up various trade barriers to protect their own interests. ISO 9001 quality management system certification is one of the representative technical barriers. Obtaining certification has become one of the most important ways to eliminate trade barriers, which helps the organization to continuously improve its overall performance and focus on providing customers with products and services of consistent quality.