Through analyzing the limit of power generation resources optimization after the electricity market in a province developing to a certain stage and the contradiction between medium and long term electricity exchange and dispatch

the necessity of developing electricity spot market in the southern China region is proposed. By drawing on the design experience of foreign regional spot market

and considering the domestic “a province as an entity” economic pattern

“West to East” national strategy

the characteristics of two-level dispatching situation

and the characteristics of the electricity market design in each province

it is pointed that the regional spot market in the southern China region should choose a regional spot market mode with balanced partition. Southern regional spot market should start from incremental spot market

and gradually increase the proportion to the regional market integration development. Finally

market rules and supporting mechanism design

the suggestions for the development of the spot market in southern region of China are proposed for trading platform construction.