A farming apparatus for Platysternon megacephalum seeds, comprising a cage rack (1), a cage (2), a water tank (3), a water tank tray (4), a water draining sink (5), and an overall frame (6). The cage (2) comprises a cage body (21) and a cage cover (22) hinged at a side to the cage body (21). A drying mesa (24) is provided within the cage body; the drying mesa (24) is trapezoidal. The water tank (3) is used for loading the cage (2). The cage (2) is movably fixed within the water tank (3). The overall frame (6) comprises a frame body and three fixed rods provided on the frame body and in a vertically corresponding arrangement, namely a first fixed rod (63), a second fixed rod (64), and a third fixed rod (65) in a downward sequence. The water draining sink (5) is fixed on the third fixed rod (65). The opening of the water draining sink (5) is aligned upward with the water tank (3) and adaptively fits the water tank tray (4), thus allowing water in the water tank (3) to fall directly into the water draining sink (5) and be discharged from a drainage hole (51). The apparatus allows batched water changing and sanitary cleaning operations and significantly increases work efficiency.