Abstract: Disclosed are an inflation-free double-sided airbag and its preparation method. The inflation-free double-sided airbag includes upper airbags arranged into an array and connected to one another to form a planar body, lower airbags arranged into an array and connected to one another to form a planar body, an elastic layer disposed between the upper airbag and the lower airbag and having an upper surface connected to the upper airbag and a lower surface connected to the lower airbag, and a soft edge connecting portion disposed between two adjacent upper airbags and between two adjacent lower airbags. After the airbag is pierced, it still has the protection effect. When an external pressure is exerted onto the inflation-free double-sided airbag, the elastic material layer provides a buffering effect to minimize the degree of deformation of the airbags and reduce impacts on a user or a product.