The utility model provides a suspended catch basin filter device which comprises a support frame, a hanging hook, a net-shaped grate, a textile filter material and an overflow pipe. The support frame is a ring beam which is in close fit the inner wall of a catch basin, the overflow pipe is arranged in the center of the support frame, the ring beam and the overflow pipe are connected through a cable-stayed beam type connection structure, and the overflow pipe is communicated with the catch basin to be used for draining water at the position of the filter device in the catch basin. The filter device can use self gravity of rain water and a filter material unit in the device to filter rain water. Furthermore, the filter device is in a suspended design, can be flexibly installed in the catch basin and simultaneously is convenient to dismount and clean.