张载是北宋“气”学的代表人物。张载为规定和诠释“气”范畴 ,运用了“太和”“太虚”“太极”“神”“化”“道”“易”诸范畴 ,张载对这些范畴的理解和说明 ,又离不开对“一”“两”范畴的理解和应用。通过对张载哲学中的“一”“两”范畴进行较为全面的考察与辨析 ,可以真实地论定张载哲学的基本架构与理论价值 Zhang Zai is the representative figure of “qi” in the Northern Song Dynasty. In order to stipulate and interpret the “Qi” category, Zhang Zai used the categories of “Taihe”, “Taixi”, “Taiji”, “God”, “” “Tao” and “Yi” Can not be separated from the “one” and “two” categories of understanding and application. Through a more comprehensive examination and analysis of the categories “one” and “two” in Zhang Zai’s philosophy, one can theoretically conclude the basic structure and theoretical value of Zhang Zai’s philosophy