Household electric energy quality monitoring and control device

The invention relates to a household electric energy quality monitoring and control device. A shell body is arranged on a monitoring and control unit, a fixed part which is matched with a guide rail inside a PZ 30 distribution box is arranged on a base bottom of the shell body, so that the aim that the fixed part is conveniently arranged inside the PZ 30 distribution box is achieved. The household electric energy quality monitoring and control device is suitable for distribution box standard of existing household users, and users of the PZ 30 distribution box achieve combination of the distribution box and electric monitoring and control equipment just by low cost. Due to the fact that the monitoring and control unit is wholly arranged in the shell body, the shell body plays a role of protecting for the monitoring and control unit, and misoperation or display screen damaging can be effectively prevented.