Efficient manure collecting device for experimental rat group

The invention relates to an efficient manure collecting device for an experimental rat group. The efficient manure collecting device comprises a rat cage, collecting drawers and supports and is characterized in that the rat cage comprises two-two-opposite single cages, multiple cages are located in one row, two rows of the cages are connected together in a planar manner, the upper portion of eachcage is provided with a cage cover, the bottom of each cage is a hollow cage bottom grid, and the left side, the right side, the front side and the rear side of each cage are surrounding plates; the supports are formed by a plurality of small box type spaces which are arranged at intervals, the support inner side of each small box type space comprises a plurality rows of clamp grooves, the clamp grooves are vertically arranged, and the clamp grooves correspond to the protrusions at the bottoms of the collecting drawer and used for fixing the collecting drawers; each row of clamp grooves of onerow of support correspond