Abstract: This paper introduces AXB,a novel absorbing material for chamber anechoic treatment.This fabric based absorber material has better performance in power capacity,fire-retardancy and environmental protection than polyurethane form absorbers.It meets the requirements of NRL Report NO 8093 Test 1,2 and 3 and other related standards.AXB pyramidal absorber has the same reflectivity performance as conventional form based absorber,but it has no unpleasant smell,powder that falls off,nor drooping tips over time.It is also clean and humidity resistant.Developed in 1999,this type of absorber has been successfully used in over 70 anechoic chambers for radar,satellite,wireless communication and antenna measurement and EMC test application.