Abstract
In this report, we describe the characteristic of iso-truss structure, and also describe the application in the space engineering. First, we briefly summarize about iso-truss structure. Next, the finite element method of three-dimensional frame structure is summarized as the method of structural analysis. The iso-truss structure is formurated as frame structure. Deformation of the structure is analyzed by numerical computation. And a result is compared with a shell structure. Finally, we proposes application in the space engineering field of the iso-truss structure.