The utility model discloses a brush scavenging machine of excrement floor roller is leaked on pig farm, by the protection casing, the roller brush, the reducing gear box, the shell, the transmission shaft, the carrying handle, switch, the motor, the power cord, the battery, the fixed pin, the main shaft is constituteed, the front end at the shell is installed to the reducing gear box, the main shaft is installed at the output shaft of reducing gear box downtheholely, roller brush suit is on the main shaft, the adoption fixed pin is connected, the protection casing is connected on the shell, the protection casing is located the outside of roller brush, the transmission shaft is located the shell, the one end of transmission shaft links to each other with the input shaft of reducing gear box, the other end of transmission shaft links to each other with the motor output shaft, the middle part at the shell is fixed to the carrying handle, switch fixes the rear end at the shell, switch's wiring is a termination power line, another termination motor, the rear end at the shell is fixed to the motor, power cord intercommunication switch and battery, these machines have convenient operation, save the manual work, and excrement and urine is driven thoroughly, low in labor strength's characteristics.