The invention proposes a monitoring electrical control cabinet for a rural sewage treatment facility. In the electrical control cabinet, a buffer mechanism is arranged and is used for developing a buffer effect on a cabinet door when the cabinet door is closed, fierce collision between a cabinet body and the cabinet door is prevented, so that the influence on electrical components when the cabinet door is closed is effectively reduced. The monitoring electrical control cabinet comprises the cabinet body, the cabinet door and the electrical components, wherein the electrical component are arranged in the cabinet body and on the cabinet door, one side of the cabinet body is hinged with the cabinet door, buffer mechanisms are arranged at an upper corner and a lower corner of the other side of the cabinet body, each buffer mechanism comprises an installation seat, a sleeve, a top rod and a buffer spring, the installation seat is fixed on the cabinet door, the sleeve is fixed on the installation seat, the top rod is movably arranged in the sleeve, the buffer spring provides an outward elastic force for the top rod, one end, far away from the buffer spring, of the top rod extends out of the sleeve under the effect of the buffer spring and also extends out of the cabinet body, a limitation bulge is arranged at one end, arranged in the sleeve, of the top rod, and a limiting baffle ring is arranged at an outer side of the sleeve and props against the limitation bulge so as to prevent the top rod separating from the sleeve.