The liquid storage container of the present invention includes a liquid storage chamber, a support part, and a rocking body configured to rock with the support part as a fulcrum. The rocking body has, on one hand, a float part that moves in accordance with the height of the liquid surface of the liquid within the liquid storage chamber, and on the other hand, a detection target part that is used to detect the amount of the liquid within the liquid storage chamber, and the detection target part is coupled to the supported part via an arm part. The low end in the vertical direction of a connection part at which the arm part and the supported part are connected is located on the lower side in the vertical direction than the top end in the vertical direction of a rotating area of the supported part.