The invention provides a sealing technology for a shelter sealing riveting rivet head. By means of the sealing technology, sealing effectiveness of a shelter body of a shelter is guaranteed. The technology is insensitive to the environment temperature and easy to construct and operate and has high sealing reliability and sealing effectiveness. According to the technology, at the position where analuminum profile outer wrapping edge seals the rivet head of a rivet, the elastic sealant dispensing space is reserved through positioning and fixing of a flexible die, then, elastic sealant is injected into the corresponding elastic sealant dispensing space position, the flexible die is removed after the elastic sealant is preliminarily cured and formed, and a product can be allowed to flow to the next procedure after the elastic sealant is completely cured.