A liquid pump comprising: a pressure container , an internal space of the pressure container being partitioned into a high pressure side space and a low pressure side space ; a shaft that is disposed in the pressure container and that has a thrust supported face extending in a radial direction of the shaft , one of both ends of the shaft in an axial direction of the shaft being disposed in the high pressure side space , the other end of the shaft being disposed in the low pressure side space ; a first bearing that is positioned closer to the high pressure side space than the other end of the shaft and that supports the shaft in the radial direction; a second bearing that is positioned closer to the low pressure side space than the first bearing and that supports the shaft in the radial direction; a pump mechanism that is disposed between the first bearing and the second bearing in the axial direction of the shaft and that pumps a liquid by rotation of the shaft ; and a thrust bearing that is disposed between the first bearing and the second bearing and that faces the thrust supported face of the shaft and that supports the shaft in the axial direction of the shaft even when the difference between the pressure in the high pressure side space and the pressure in the low pressure side space increases, wherein a passage for the liquid is formed in an outer circumference of the shaft , the passage extending from the high pressure side space to the low pressure side space through the first bearing , the thrust bearing , and the second bearing in an order of the first bearing , the thrust bearing , and the second bearing . a pressure container , an internal space of the pressure container being partitioned into a high pressure side space and a low pressure side space ; a shaft that is disposed in the pressure container and that has a thrust supported face extending in a radial direction of the shaft , one of both ends of the shaft in an axial direction of the shaft being disposed in the high pressure side space , the other end of the shaft being disposed in the low pressure side space ; a first bearing that is positioned closer to the high pressure side space than the other end of the shaft and that supports the shaft in the radial direction; a second bearing that is positioned closer to the low pressure side space than the first bearing and that supports the shaft in the radial direction; a pump mechanism that is disposed between the first bearing and the second bearing in the axial direction of the shaft and that pumps a liquid by rotation of the shaft ; and a thrust bearing that is disposed between the first bearing and the second bearing and that faces the thrust supported face of the shaft and that supports the shaft in the axial direction of the shaft even when the difference between the pressure in the high pressure side space and the pressure in the low pressure side space increases, wherein a passage for the liquid is formed in an outer circumference of the shaft , the passage extending from the high pressure side space to the low pressure side space through the first bearing , the thrust bearing , and the second bearing in an order of the first bearing , the thrust bearing , and the second bearing . <EOS>