A liquid storage container (eyedrops container) A comprises a container body 10 having a liquid storage portion 12 for containing medical liquid therein, and an instilling portion 61a for allowing the medical liquid to flow out in an opened state. An aerating device 100 having a filter element 101 and a check valve 103 for allowing ambient air to flow in from outside and preventing the liquid from flowing out to the outside is installed at the bottom of the container body 10. Further, a cap B having an opening member 9 and a valve member 11 is mountable on the container body 10.
