The purpose of the study is included of structure design of UAV in detail and Fabrication. The motor of the portable UAV is AXi 4130/20 kv305 electric brushless motor. This UAV has 3.7 m wingspan and 10kg weight with three parts of solar panels on the top of the wing and horizontal tail with power of 45 watt. To make the portable UAV lighter, the structure of wing is the combination of C beams and 3D printed structures.Then, 3D printed structures are designed as truss structure. From these designation, the portable UAV can be lighter.