一件公文,尤其是指挥性、规范性、政策性很强的公文,必须符合党和国家的方针、政策和法律、法令,符合客观实际,充分体现本机关领导层的决策意图.而要做到这一点,就必须认真做好公文撰写的准备工作.这个准备工作,除了撰写人员必须掌握公文写作原理,具备相应的写作技巧外,最主要的就是要吃透“三头”,也就是要吃透“上头”、吃透“下头”、吃透“头头”. An official document, especially a document that is commanding, normative and highly policy-oriented, must conform to the party’s and party’s principles, policies, laws and decrees and conform to objective reality to fully reflect the decision-making intention of its own leadership. At this point, we must conscientiously do a good job of compiling the official documents.This preparatory work, in addition to writing staff must master the principle of document writing, with the appropriate writing skills, the most important thing is to thoroughly understand the “three”, that is to eat thoroughly “Top”, thoroughly through the “head”, thoroughly “head”.