Abstract: Fiber/silica aerogel composite exhibits extensive application prospects in building,energy and material fields owing to its excellent mechanical and thermal properties.Based on size and morphology of fibers,the fibers were classified into regular bundle fiber,preform fiber and nano fiber.Preparation processes and structure characteristics of the three kinds of fibers reinforced aerogel composites were summarized,followed by advances in improving mechanical and thermal properties.Furthermore,Existing problems of the three kinds of fibers/aerogel composites were discussed,and thereby proposed the research perspective.

Key words: aerogel;fiber;composite materieal;mechanical property;thermal insulation property