The invention discloses an inspection well. The inspection well comprises a well body made of plastic, and a valve base arranged in the well body; the valve base includes a vertical rod, a transverse rod, a support rod, a first connecting bolt and a second connecting bolt; a strip-shaped hole is formed in the vertical rod; one end of the transverse rod is connected with the vertical rod through the second connecting bolt; one end of the support rod is connected with the vertical rod through the first connecting bolt; the other end of the support rod is fixedly connected with the transverse rod; the first connecting bolt and the second connecting bolt are both inserted in the strip-shaped hole; and the vertical rod is fixedly connected to the inner wall surface of the well body. The inspection well further comprises reinforcing ribs fixed on the wall surface of the well body. In the valve inspection well provided by the invention, installation workers can mount the vertical rod in an adaptive position of the well wall of the well body according to a valve position, and can mount a valve in the well body more conveniently through adjusting the position of the transverse rod along the strip-shaped hole; and meanwhile, backfill soil around the inspection well is easy to fill, so that the service life is long.