The term "immovable property" refers to things that occupy a fixed position in space according to natural nature or legal provisions, and whose movement will affect their economic value, including land, land fixtures, land products that have not yet been separated from the land, and other things that are attached to the land by nature or manpower and cannot be separated. With the continuous acceleration of urbanization and the continuous improvement of people's living standards, real estate services have become an integral part of public life.

Real estate refers to the things that occupy a fixed position in space according to the nature of nature or the provisions of the law and will affect its economic value after moving, including land, land fixtures, land products that have not been separated from the land, and other things that are attached to the land and cannot be separated due to nature or human resources. With the continuous acceleration of urbanization and the continuous improvement of people's living standards, real estate services have become an inseparable part of public life. Real estate service belongs to a new and fast-growing industry. Now it has formed corporate operation, brand management, involvement in many major links such as sales and after-sales service of the real estate development industry, and has become an important part of real estate consumption. First, property service certification is conducive to strengthening the internal management ability of enterprises, forming a systematic and standardized management system, clarifying internal responsibilities, optimizing process operation, and strengthening the service ability of enterprises; Second, it is conducive to the improvement and cost reduction of the enterprise, helping the enterprise to embark on the environmental protection and economic route, improve the environment and improve the maintenance ability, so as to enhance the company's image and improve customer satisfaction; The third is to provide scientific and effective management guidance for enterprises, strengthen the service awareness of employees, strengthen autonomy, improve the comprehensive quality of enterprise personnel, and improve the overall service level. Fourth, through the comprehensive evaluation of the service ability, service process control and service performance of the property organization, it is one of the ways to promote the establishment of professional, standardized, professional and humanized management of the property organization, to prove its ability to the public and its service level to the peers.