Chalcogenide glass possesses significant potentials for applications in photonic devices due to its high refractive index, wide infrared transparency window, low nonlinear loss, and fast nonlinear response. With the development of nanofabrication technology in recent years, novel micro/nano photonic devices based on chalcogenide glass have been widely used in the fields of telecommunication, security, medical and environmental applications. In this review, recent work on the preparation technologies of chalcogenide glass thin films, micro-/nano-device fabrication methods, the application and future prospects of chalcogenide glass optical devices was represented, respectively, based on the physical and optical properties of chalcogenide glasses.