To provide the structure of the framework of a tent that can be easily assembled and installed.

The framework structure of a tent is provided with a left sideward member 1 having at least a first left sideward member 11, a second left sideward member 12, a third left sideward member 13, and a fourth left sideward member 14, and a right sideward member 3 having at least a first right sideward member 31, a second right sideward member 32, a third right sideward member 33, and a fourth right sideward member 34. The left sideward member 1 is supported by the left rotation support member 2 in advance so that the member 1 can be rotated freely. At the same time, the right sideward member 3 is supported by the right rotation support member 4 in advance so that the member 3 can be rotated freely.