“物质的量”是高中化学知识体系的基石,是高中化学计算的核心,其对衔接宏观和微观、定性和定量发挥着巨大的作用。本文以内地人教版高中化学必修1(2007)和香港地区《化学探知》(2009)为研究对象,运用比较研究法,横向比较两种教材中“物质的量”的相关内容,为教师合理把握教材,呈现知识形式,优化教学设计提供参考,也为内地教材的编写提供参考。 “The quantity of matter ” is the cornerstone of high school chemistry knowledge system, is the core of high school chemistry calculation, which plays a huge role in convergence macro and micro, qualitative and quantitative. In this paper, we compare the content of “material ” in two textbooks of the PEP with chemistry PEP 1 (2007) of the PEP and Hong Kong “Chemical Discovery” (2009) Teachers can grasp the teaching materials reasonably, present the knowledge forms, and provide reference for optimizing the teaching design. It also provides a reference for the preparation of teaching materials in the Mainland.