The invention discloses a submersible pump which comprises a submersible pump body (1) located in the underground pump well, a water pipe body (2), a wellhead cover (3), a support splint (4), a 90DEGelbow (5), a flow control valve (6), an outlet pipe joint (7) and an electric control cabinet (8). The submersible pump body comprises a submersible pump casing (1-1) and a submersible motor (1-2) installed in the submersible pump casing. The upper end of the submersible pump casing is connected to the water pipe body, and the upper end of the water pipe body is disposed on the wellhead cover on the ground and fixed by the support plate. The 90DEG elbow is connected to the upper end of the water pipe body, and the 90DEG elbow is provided with a double-ball rubber joint (9) at one end, and oneend of the double-ball rubber joint is connected to the outlet pipe joint through a flow control valve. The outlet pipe joint is provided with a Y-type filter (10) and a water quality monitoring interface (11), and an electronic water quality monitor (12) is arranged on the water quality monitoring interface. The invention adopts a submersible pump and has a reasonable structural design.