Abstract: Environmental monitoring is the basis of environmental protection, and it is the legal responsibility of the administrative department of environmental protection. In order to achieve the first breakthrough in the ecological environmental protection of Beijing Tianjin Hebei, the three places should cooperate and support each other in the environmental monitoring political and legal system. But there are still many problems in the current legal system of environmental monitoring policy, such as system construction being not synchronized, the main reform not cooperating, the monitoring object being not consistent, testing standards being not unified, monitoring procedures being not clear and monitoring results being not standardized Conforming to the future development of the national environmental monitoring system, we should draw lessons from the beneficial experience of the foreign environmental monitoring system. We need to research and determine the unified monitoring quality management system to build the regional ecological environment monitoring network, and to lay a solid foundation for political and legal basis for the breakthrough of “unified monitoring” through the collaborative development of the environment monitoring system between Beijing Tianjin Hebei.

Key words: the coordinated development of BeijingTianjinHebei, environmental monitoring, environmental protection, legal system