Graphene has excellent optical and electrical properties, opening up a very promising way to achieve a variety of high-performance graphene-silicon-based devices. In recent years, graphene/silicon hybrid integrated photonic devices research has achieved significant progress, exhibiting excellent performance such as ultra-large bandwidth and ultra-low power consumption. This paper introduces some typical silicon/graphene hybrid integrated devices, including electro-optical modulators, thermo-optical modulators, and photodetectors, briefly explains their principles and properties, and makes a prospect for their future applications and development.