Abstract: Virtual power plants are essential flexibility regulating resources for high proportion renewable energy power systems.Recently,the market trading of virtual power plants in many places in China has achieved initial success.This article focuses on the virtual power plant market that has been developed in China,and compares the market mechanism of virtual power plants participating in peak regulation,frequency regulation,demand response and other varieties of trading from the aspects of access conditions,quotation and clearing,settlement and so on.Combined with typical cases and current status of virtual power plant market mechanism construction,the proposal of transforming virtual power plants from auxiliary service market to spot market is put forward,and a feasible market mechanism for transmitting spot price to virtual power plants by way of prior invitation is established.