COVID-19 is a new epidemic disease that broke out this year. We design a capsule unit that can be easily transported and can adapt to various conditions. In the hope of saving more energy, we find that barbules can formed a solid diamond grid by their own. Upon that, we learn from the composition method and then designed a capsule structure system that can be quickly unfold and pack up. On the other hand, we use the pattern of barbules for reference to design the heat-insulation panel which used as the shell of Mobile Cabin Hospital.