The utility model discloses a simple and easy device for local precipitation of foundation ditch, including the tubulose frame, the tubulose frame is including the cyclic annular a plurality of main frame reinforcing bars that distribute, and a plurality of main frame reinforcing bars pass through closed stirrup interconnect, a plurality of bottoms reinforcing bar that the bottom fixedly connectedwith interval of tubulose frame set up, the lateral wall outside of tubulose frame and the equal fixedly connected with one -level filter screen in the outside of bottom reinforcing bar, the one -level filter screen includes a plurality of layers of expanded steel diamond mesh, the outside fixedly connected with secondary filter net of one -level filter screen, secondary filter net includes a plurality of layers of dense mesh. Can adopt waste and old materials to carry out scale processing, material saving and cost according to the actual demand, adopting the reinforcing bar as the skeleton,wrapping up double -deck filter screen, the drainage is effectual, can not block up the precipitation well because of the strainer is damaged, can reduce the foundation ditch water level fast, adopt the job site waste and old materials of reaching commonly used to process, green, processing simple manufacture, convenient to use, low cost, it is respond well, material saving and engineering time.