Exploration for oil and deep gas in northern Songliao Basin, complex rift basin--Hailaer Basin, and Yi-Shu Graben in peripheral basin has technical challenge. Researches on supporting technology including seismic acquisition, processing and interpretation, logging and drilling are performed to establish high resolution 3D seismic technology for lithologic reservoir, deep volcanic rock and complex rift basin, reservoir evaluation and stimulation technology for low permeability reservoir, volcanic reservoir and complex rift reservoir, and drilling technology for deep volcanic rock, pro- viding technical support for reserves increase in northern Songliao Basin, large gas reservoirs discovery in deep volcanic rock and exploration progress in complex rift basin. Next-step development trend of exploration technology is proposed to meet the demand of more technical challenges in the future.