The utility model discloses a blanking fill with alarming function, including blanking fill body, one side of blanking fill body discharge gate is provided with the observation window, and still include monitoring facilities, alarm and expect the device automatically absolutely, monitoring facilities whether filling diffuse reflection passes the photoelectricity sensilla including being arranged in the monitoring to set up material case material in blanking fill body below, the diffuse reflection pass the photoelectricity sensilla and set up on the observation window, the utility model discloses fight the below at the blanking and has set up the measuring window, the very first time can observe the blanking fight in the material circumstances of piling up, then install diffuse reflection photoelectric switch on detecting the window, when making the material pile up to a take the altitude, arrive photoelectric switch survey scope, trigger audible -visual annunciator. It is further the utility model discloses a set up sliding door, closed hopper discharge gate when reloading waits and has traded the material case and open automatically and carry out the ejection of compact, realizesseamless reloading, realizes seamless reloading, raises the efficiency greatly and the security.