Is to evaluate the professional skills of employees. The certificate of rural drinking water management and protection personnel in Zheng 'an County refers to the requirement that the personnel engaged in the maintenance and management of rural drinking water pipelines throughout the county must undergo relevant training and obtain corresponding qualification certificates. Certificate is a way to evaluate the professional skills of employees and one of the important means to ensure the safety of drinking water in rural areas. Rural drinking water managers can prove that they have the corresponding professional knowledge and skills, can be competent for their jobs and provide reliable drinking water sources for rural residents. At the same time, the certificate can also provide employees with a broader development space, which is conducive to improving their professional quality and competitiveness.