The invention discloses a water-jet-propelled deep-sea glider comprising a housing, gliding wings, a tail, a battery pack, a navigation control center, a center-of-mass regulating device, a buoyancy regulating device, a jet propulsion device, a satellite communication antenna, a load rejecter, and an observation meter. The gliding wing and the tail are arranged on the outside of the housing. The battery pack, the navigation control center, the center-of-mass regulating device, the buoyancy regulating device, the jet propulsion device, the satellite communication antenna, the load rejecter and the observation meter are disposed inside the housing. The housing comprises a pressure-resistant housing and a non-pressure-resistant housing. The pressure-resistant housing includes a front segment and a rear segment and is in a cylindrical structure. The gliding wings are fixedly mounted on two sides of the outside of the non-pressure-resistant housing and provide the water-jet-propelled deep-sea glider with lift. The tail is fixedly mounted at the rear of the rear segment of the non-pressure-resistant housing and is used for stable navigation. The battery pack is used as a mas regulating block for center-of-mass regulation and integrated to the center-of-mass regulating device. The water-jet-propelled deep-sea glider has the advantages of low power consumption, long sailing schedule, wide range, low noise and high concealment.