Abstract: With the time extension of heavy oil reservoir development, many problems have been occurred, such as the effect of oil layers heterogeneity and imbalance of producing degree in vertical direction, which has become an important obstacle for oil well production. The injection-allocation technology is therefore put forward to solve these problems. Combined the heavy oil injection-allocation technology and chemical processing technology together, the new technology is comprehensively applied to oil wells and effectively improve the oil well production rate and the stimulation effect, and achieves economic efficient development of heavy oil reservoirs in purpose.