PROBLEM TO BE SOLVED: To provide a submerged electric pump capable of discharging water and air containing oxygen and thereby capable of supplying air containing oxygen into water even when installed at an underwater deep position.SOLUTION: A submerged electric pump 100 comprises: a motor 1； a pump chamber 4 in which an impeller 3 driven by the motor 1 is arranged and which includes a discharge port 42； an air supply pipe 61 for supplying air containing oxygen to water discharged from the discharge port 42； a pressure device 7 connected to the air supply pipe 61 and for pressurizing the air containing oxygen supplied from the air supply pipe 61； and a pressure sensor 43 for detecting water pressure in the pump chamber 4. The pressure device 7 pressurizes the air containing oxygen supplied from the air supply pipe 61 based on a detection result of the pressure sensor 43.SELECTED DRAWING: Figure 1
