Abstract: Integrated quantum photonics enables the integration of a large number of photonic components on a single device using traditional semiconductor micro-nano processing technology to realize quantum information processing applications, which has the advantages of high integration, high accuracy and high stability. Silicon quantum photonics shows great potential for future large-scale photonic quantum computing and information processing applications of practical interest, due to its CMOS compatibility, strong nonlinear effects, and ultra-high integration. This article presents an introduction to silicon quantum photonics, including the fundamental components, the generation, manipulation and detection of photons on silicon photonic chips, and the development of large-scale silicon quantum photonic chips for quantum computing and quantum information processing applications. The technical challenges and future directions will also be briefly discussed.