Abstract: In order to improve heavy oil development effects of Liaohe oilfield,based on S block of Dalinghe oil reservoir,the technical feasibility of the combustion assisted gravity drainage has been analyzed.By using physical model,numerical model,reservoir engineering methods and etc,the develop parameters have been designed and optimized.According to the design results,5 test well groups have been deployed.At present,the first well group with combustion assisted gravity drainage has been successfully ignited and has achieved preliminary effects.