In the current in-depth operation of the management system,from the initial exploration and attempt,to the current orderly and efficient,has formed a complete closed loop,from the target setting to the plan formulation,to the implementation and monitoring,and finally to the evaluation and feedback,each link is closely linked,support each other.This interlocking operation mechanism ensures that our work can proceed in an orderly way.With the in-depth operation of the management system,this article takes environmental testing as an example to discuss with you some key points and difficulties in the actual operation,to exchange information,share technology and resources,promote all parties to jointly improve the ability and level of environmental testing and protection,and further promote the development of environmental monitoring and protection work.