本研究在整理了科学探究和教科书编写相关理论的基础上确立了研究的基本框架，采用内容分析的研究方法，建立了分析类目表并选择了内容分析单元。利用分析类目表对内容分析单元进行定量分析，在此基础上结合定性分析获得了研究结论并给出了一些教科书的使用建议供使用者参考。研究的主要结论如下：第一、从科学探究的单元数量来看，苏教版教科书中最多，而从单项科学探究内容所占页面篇幅来看，鲁科版教科书最多。从不同模块分布情况来看，《实验化学》模块中科学探究内容所占比例最大。第二、从科学探究的内容选择来看，三套教科书中针对事实性知识的科学探究内容所占比例都是最大的。具体的科学探究内容的选择来看，三套教科书中有很多针对相同知识点进行的科学探究。第三、从科学探究的任务类型来看，三套教科书中都是逻辑推理任务最多，测量性任务最少。针对事实性知识的科学探究内容主要采用了逻辑推理的任务形式，此外还有一定数量的建造性/工程性任务和探索性任务。第四、从科学探究的活动方式来看，三套教科书中都是实验型的科学探究最多，三个版本都不涉及辩论。第五、从科学探究的开放水平来看，人教版和鲁科版教科书都是以2、3级水平的科学探究为主，苏教版则主要以2级水平的科学探究为主。人教版和鲁科版教科书都注意到了循序渐进地提高科学探究开放水平，苏教版则基本没有这方面的考虑。第六、从科学探究的文本呈现来看，三套教科书都使用了实物图片、示意图和图表来辅助文字符号进行内容呈现。第七、三套教科书中《实验化学》模块都表现出与其它模块不一致的一些特点，在科学探究内容的编写方面明显优于其它几个模块。

This study summarized the relevant theories of scientific inquiry and the preparation of textbooks, and then established the basic framework. This study took content analysis as its research method, and established the categories table and chose appropriate content analysis units. On the basis of quantitative analysis on content analysis units with the categories table and the combination of qualitative analysis, the conclusions were gained. After that, a number of recommendations for the users of the textbooks were given. The main conclusions are as follows:First, the content analysis units in the textbooks which are prepared by Jiangsu Education Press are the most. As for the text size of an individual unit, the textbooks which are prepared by Shandong Science and Technology Publishing House are the most. Furthermore, the content of scientific inquiry in "Experimental Chemistry" is more than other modules.Second, scientific inquiries on factual knowledge are the most in all the three editions. There are a number of the same scientific inquiry points in all the three editions.Third, for the types of scientific inquiry tasks, the logical reasoning tasks are the most, and the measuring tasks are the fewest. Most tasks of factual knowledge are the logical reasoning tasks. In addition, there is also a number of construction / engineering tasks and exploratory tasks.Fourth, for the activities of scientific inquiry, experiment is the most in all the three editions. Moreover, there is no debate in the scientific inquiry content of all the three editions.Fifth, for the opening level of scientific inquiry, textbooks which are prepared by People's Education Press and Shandong Science and Technology Publishing House are 2, 3-class level of scientific inquiry-based. However, textbooks which are prepared by Jiangsu Education Press are 2-class level of scientific inquiry-based. The front two editions take notice of the gradual increase in the opening level of scientific inquiry, while the later one edition does not have any consideration.Sixth, in addition of words, all the three editions of textbooks have used pictures, diagrams and charts to help showing the scientific inquiry content.Seventh, textbooks of "Experimental Chemistry" are different from any other modules. The scientific inquiry content in "Experimental Chemistry" is superior to all the other modules.