The invention discloses a real-time full detection system for dust accumulation on an air conditioner filter, including an air conditioner inner unit, an air conditioner outer unit, an air monitoring device, a wind speed monitoring device, a humidity monitoring device, a filter screen dust accumulation detection control chip, a use time monitoring chip, Dust full prompt rule base chip, dust full display control chip, heavy metal lead detector and dust mite activity detector are connected; by setting air monitoring device, wind speed monitoring device, humidity monitoring device and usage time monitoring chip, combined with outdoor air quality and air conditioning The average value of the wind speed in the working state, the real-time humidity parameters of the installation environment of the air conditioner, and the use time of the air conditioner. The multi-parameter detection can improve the accuracy of the dust full detection result, and can also detect the lead content and dust mites on the air conditioner filter. The content and the activity degree parameters of dust mites can provide users with a comfortable and safe air conditioning experience.