A bottle container includes: a tubular inner container 2 including a cap at an upper portion thereof; and an outer container 3 mounted so as to extend along a trunk 5 and a bottom 6 of the inner container 2, the inner container 2 includes a shoulder 8 at the upper portion which is not covered with the outer container 3, an outer peripheral portion 13b of a bottom 13 of the outer container 3 is made thicker than a side wall 14 of the outer container 3, a center portion 13a of the bottom 13 of the outer container 3 is made thinner than the outer peripheral portion 13b to form a space 13c, and the outer container 3 mounted to the inner container 2 and the shoulder 8 of the inner container 2 are covered with a heat-shrinkable film 4.