Anti-falling catch basin

The utility model relates to the technical field of rainwater wells, and discloses an anti-falling rainwater well which comprises a rainwater well body, a well lid is placed at the top of the rainwater well body, an annular plate is fixedly connected to an inner cavity of the rainwater well body, a whole circle of positioning groove is formed in the top of the annular plate, and an anti-falling assembly is arranged on the annular plate. A communicating groove communicating with the whole circle of positioning groove is formed in an inner cavity of the annular plate, and the anti-falling assembly comprises a positioning cylinder connected with the top of the annular plate in an inserted mode. According to the anti-falling catch basin, the anti-falling assembly can be supported through the arrangement of the annular plate, the anti-falling assembly can be positioned through the arrangement of the whole circle of positioning groove, the anti-falling assembly can be installed more stably through the arrangement o