The utility model discloses a telescopic-pipe type layered-water-taking middle-low-water-head dam which comprises a dam body. A water inlet section is arranged in the middle of the dam body, the upper side and the lower side of the water inlet section are provided with vertical wells respectively, a horizontal water inlet pipe is arranged in the water inlet section and communicated with the vertical wells on the two sides through a longitudinal water inlet pipe, each vertical well is composed of an inner vertical well body and an outer vertical well body, sliding rails are arranged in the inner vertical well bodies in the vertical direction, rail-type lifters are installed on the sliding rails, a connecting piece, a drain grating cover, a horn-shaped connecting pipe and a telescopic pipe are sequentially connected between each rail-type lifter and the longitudinal water inlet pipe, valves are arranged between the telescopic pipes and the longitudinal water inlet pipe, and a service gate is arranged in the horizontal water inlet pipe. According to the telescopic-pipe type layered-water-taking middle-low-water-head dam, water taking in different depths can be achieved, and the taken-water temperature range is expanded; the flexibility, the safety and the stability of water taking operation are improved; the telescopic-pipe type layered-water-taking middle-low-water-head dam can be widely applied to middle-low-water-head layered type reservoirs, and the water demands of the downstream positions of the reservoirs are met.