Abstract: The South China Sea is rich in oil and gas resources, but the exploitation of oil and gas resources in the region has long been in a state of disorder and inefficiency for political reasons.In order to safeguard China's sovereignty and other legitimate rights and interests in the South China Sea, realize energy diversification strategies, and ensure energy security, China, as a big country in the South China Sea region, needs to strengthen the participation and voice of oil and gas resources development activities in the South China Sea region through dialogue and cooperation.Since the Chinese energy company entered the South China Sea through international investment, the cooperation between China and Indonesia is a model of energy cooperation in the South China Sea under the China-ASEAN framework.Currently, it is mainly carried out through international investment.Indonesia's external cooperation in the oil and gas sector uses a product sharing contract as a typical legal sample, which is also a typical sample on a global scale of this field and mainly exhibits strong flexibility, maturity and resource nationalism.These characteristics have an important guiding significance for China-ASEAN oil and gas cooperation in the South China Sea.