Programmable silicon multifunction photonic chips are key components in the field of information photonics. They can be widely used in various important applications, including high-speed, multifunctional on-chip optical logic computing, and optical signal processing. In such chips, silicon-integrated devices are used to construct an on-chip optical network. Meanwhile, functional programming and signal loading of the device can be realized by loading the thermal and electrical signals on the optoelectronic device. In this way, multifunctional operations can be implemented using a single chip. Recently, domestic and foreign research teams have made important contributions in these areas. However, current programmable silicon multifunctional chips have several drawbacks, such as speed, integration density, and the automatic programming method. In this paper, we present the basic principle and performance of the demonstrated chips. We also discuss their applications and future prospects.