Micro/nano-optical devices are some optical devices which have micro/nano-scale size，and they have some advantages，such as small volume，high reliability，high coupling efficiency，light weight，flexible design and easy integration. As a novel substrate material of micro/nano-optical device，chalcogenide glass possess some unique advantages，such as large infrared transmission window，ultrahigh nonlinear coefficient， smaller two photon absorption coefficient，ultrashort nonlinear response time and tailorable compositions. In recent years，chalcogenide glass micro/nano-optical devices have attracted many attentions. The research progress of chalcogenide glass micro/nano-device is reviewed in terms of chalcogenide glass micro/nano-fiber， microsphere，photonic crystal and microring.Their potential applications and development prospects are also discussed.