The utility model discloses a processing apparatus of surplus sewage in family kitchen belongs to sewage treatment device technical field. The device includes: the plastic width -lock type single -layer sealed packing case comprises a casin, the box upper end is equipped with the water -dividing chamber, water -dividing chamber upper end opening part is linked together with total water inlet, thewater -dividing chamber includes A movable partition, left side delivery port, right water outlet and pivot, left side delivery port and right water outlet's below all is equipped with the filter thatthe inclined that inclines put, be equipped with electric push rod on the filter, be equipped with vertical baffle between two filters, the left side of first electric push rod is equipped with the fermentation bed chamber, the below of the filter on right side from left to right is equipped with oil -water separation cavity and oil processing chamber in proper order, be equipped with the ball -cock assembly in the oil -water separation cavity, the right -hand member of inhaling oil pipe stretches into the oil processing intracavity on right side. The utility model discloses a processing apparatus of surplus sewage in family kitchen can with oily sewage and not oily sewage separate and handle, alleviate the sewage treatment burden, the design is compact reasonable, can remove, reduces laying of pipeline, area is little.