Abstract: A comprehensive understanding of farmland usage of herbicide in Heilongjiang Province, will play an important role in Heilongjiang agricultural production and the improvement of agricultural ecological environment. The author comprehensively and systematically examined the varieties of herbicide used in Heilongjiang, the usage and distribution in parts of the world for the first time, and this survey was for the herbicide pesticide production enterprises and some dealers at home and abroad in the form of questionnaire, which can provide theoretical basis for the reasonable application of herbicide. Herbicide was priority pesticide used in Heilongjiang Province, which was over 85% of the amount of pesticide. The herbicide used in Heilongjiang including 55 kinds of single dose, 41 kinds of mixed dose, and of which there were 34 kinds of single dose and 29 kinds of mixed dose used in dry farmland, there were 21 kinds of single dose and 12 kinds of mixed dose used in paddy field. The amount of herbicide goods was 59504 tons, effective dose was 28693 tons used in Heilongjiang in year 2012, available area was over 3575 million hm2. The amount of herbicide goods increased 11.9%, effective dose increased 7.7%, available area increased 12.9%. Distribution in the whole province: Harbin accounted for 33% , because Harbin was the collection and distribution center or pesticide. The second was the Jiamusi accounted for 22%, and Qiqihar accounted for 17%. Advice to establish standard system of economical and rational use of herbicides, limit and reduce the production and use of long residual herbicides, promote and apply safe and efficient herbicides.