High-pressure large load air spring

The present invention belongs to a high-pressure large-load air spring, in particular, it relates to a vibration isolator using compressed air whose pressure is greater than IMPa as elastic body. It is composed of the following several portions: rubber bag body with aramid fiber skeleton layer, cover plate, disked flange, sealing ring and filling material in the bag interior. Said invention also provides the concrete structure of above-mentioned every portion and the connection mode of all the above-mentioned portions. Said invention also provides the working principle of said high-pressure large-load air spring and its concrete operation method.