Abstract: According to the characteristics of heavy oil reservoir in Jimusaer region,through 3D geological modeling,the research of three development manners,namely all-vertical well pattern steam stimulation turned to steam driving,vertical well pattern+horizontal well pattern turned to SAGD,all-horizontal well pattern steam stimulation turned to steam driving,on development effect has been carried out.Results indicate the development manner,vertical well pattern+ horizontal well pattern turned to SAGD,is the most suitable for this block.