The invention provides a multifunctional flytrap which integrates a vase and a fish tank, has functions of floriculture, pisciculture and fly catching, simultaneously brings sanitation and delightful and good-looking effect for natural environment and living. The multifunctional flytrap takes vase-type shape as a main body in which a large and a small funnels which butt with each other in an inversed order and a lower edge of which rolls outward and is connected to an outer wall are arranged to form a hollow groove water storage tank (4). A water drainage opening (8) and an overflow opening (14) are arranged at the bottom of the water storage tank, and the bottom of the water storage tank (4) is connected to a hollow round table pedal (6). The lower edge of the pedal (6) is provided with a plurality of arc openings which are connected to a tray (5). The upper end of the flytrap is a horn type opening, one side thereof is provided with olive-shaped funnel water inlets (1) at intervals, the water inlets (1) are connected to water outlets (3) of a inflow wall tube, the other side is provided with a movable on and off cover (7), and the over (7) is provided with a pole-shaped hole (7a) at a center portion of the horn-shaped opening.