The invention provides a standardized quick-replacement type ring network switch device. The standardized quick-replacement type ring network switch device comprises a cabinet body, a cabinet door, acontrol panel, a condensation-preventing plate, a wiring duct, a controller installing support, a water absorbing device, a seal box, a controller component, a pressure release mouth and a steam filter equipment. The standardized quick-replacement type ring network switch device reduces the water mist inside and outside the cabinet body, improves the drying property in the cabinet body, can avoidthat water mist flows into the cabinet body from the outside when pressure release to avoid the phenomenon of water accumulation in the cabinet body. The standardized quick-replacement type ring network switch device prolongs the service life of the controller element and solves the problem of damage of the controller element caused by moisture; and moreover, the standardized quick-replacement type ring network switch device is simple in structure, convenient to use, low in manufacturing cost and easy to popularize.