Abstract: In order to improve the quality of agricultural land, promote crop growth and agricultural sustainable development, given the characteristics of different accumulated temperature zones in Heilongjiang Province, different application modes of mineral biological fertilizer were selected to analyze the biological characteristics, yield and composition factors of rice production areas in different accumulated temperature zones.The results showed that when the level of mineral biological fertilizer was set as Youjun · Woneng 37.5 kg ·ha^-1, bioactive silicon 37.5 kg ·ha^-1, zinc sulfate 7.5 kg ·ha^-1, the growth and yield of rice were most significantly promoted. The results showed that the application of mineral biological fertilizer and straw returning coupling technology in the three main rice production areas of the accumulated temperature zone in Heilongjiang Province improved the yield to varying degrees. The yield increase rate of rice in the first accumulated temperature zone was 4.58%-16.34%, that in the second accumulated temperature zone was 6.78%-21.19%, and that in the third accumulated temperature zone was 2.61%-17.39%.It is suggested that the application of bio bacterial fertilizer and micro fertilizer together with straw returning can play a positive role in soil quality improvement and increase rice yield.