Roof greening matrix block

The utility model discloses a roof greening matrix block, and particularly relates to the technical field of greening matrix blocks, which comprises a bottom plate, a rectangular box is arranged at the top of the bottom plate, water-absorbing rock wool is arranged at the bottom of an inner cavity of the rectangular box, an isolation water-permeable film is arranged at the top of the water-absorbing rock wool, and matrix soil is arranged at the top of the isolation water-permeable film. A water storage structure is arranged at one end of the rectangular box, the water storage structure comprises a water storage box, the water storage box is installed on one side of the rectangular box, a plurality of communicating pipes are arranged between the water storage box and the rectangular box, and a plurality of backflow pipes are arranged at the bottom of the water storage box. According to the green plant planting device, normal growth of green plants can be guaranteed, good water can be provided for the green plan