The utility model provides an energy-saving floating type movable pressurized anchor ship, which comprises a ship body, an electrical system, a control system and a drive device located at the bottom of the ship body, wherein the drive device is a dual-pedrail walking device and is connected to a hydraulic lifting device for controlling the dual-pedrail walking device; a hydraulic power station 13 is mounted on an upper deck of the ship body; the ship body further comprises an ore slurry buffer tank and a slag slurry pressurization pump; the ore slurry buffer tank 3 is equipped with an ore slurry tank inlet pipe 7; the ore slurry tank inlet pipe 7 is connected with a floating pipe; an ore slurry tank outlet pipe 6 is arranged at the bottom of the ore slurry buffer tank 3; the ore slurry tank outlet pipe 6 is connected with the slag slurry pressurization pump; the ore slurry buffer tank 3 is equipped with a liquid level detection device, and the slag slurry pressurization pump 4 is equipped with a frequency conversion and speed regulation device. The movable pressurized anchor ship provided by the utility model replaces a floating pipe positioning anchor point and a weigh anchor ship, achieves automatic anchor moving and positioning, effectively saves manpower and transportation cost, and helps a hydraulic mining ship with orderly working according to channels.