Abstract: In order to apply the waterproof breathable material to the spacecraft,the main characteristics and specifications of a new waterproof breathable material were introduced and tested.Based on these tests,the main characteristics of the waterproof breathable material applied to the spacecraft were discussed and analyzed.The application exaplmes for the Chinese spacecraft were introduced.The characteristics of large breathable capability and well waterproof performance of the waterproof breathable material are very good and can meet requirements for spacecraft application.The waterproof breathable material can be used for the spacecraft in the future.