The utility model provides a burden level examining device and ash conveying system who has it. Wherein, burden level examining device includes: the connecting pipe is connected with the feed cylinder, the inner through hole of connecting pipe and the inside cavity of feed cylinder intercommunication, pressure differential response portion sets up on the connecting pipe, and pressure differentialresponse portion is used for responding to the inner through hole pressure differential outside with the connecting pipe. The utility model discloses judge that the detection device reliability of thestifled ash of ash bucket is poor in can solving prior art, increased the problem of staff's work load.