Abstract: Systematic text condensation（STC）is a new type of qualitative data analysis method，which can analyze different types of qualitative data across cases. The method is intersubjective，which provides a reflective and actionable process for novice researchers while maintaining methodological rigor. STC includes the following steps：（1）total impression–from chaos to themes；（2）identifying and sorting meaning units–from themes to codes；（3）condensation–from code to meaning；（4）synthesizing–from condensation to descriptions and concepts. We made an introduction on the background，principles and process of the development of this analytical method and compared it with other qualitative data analysis methods，so as to provide a reference for medical qualitative researchers，especially for researchers in China.

Key words: Qualitative research, Systematic text condensation, Text mining, Methodology, Application steps

摘要： 系统性文本凝练方法为一种新型的定性资料分析方法，可对不同类型的定性资料进行跨案例分析。该方法具有主体间性特点，可为新手研究人员提供一个反思性和可操作性强的流程，同时保持了方法的严谨性。该方法包括以下步骤：（1）初步阅读，形成总体印象——从碎片化信息到主题；（2）识别、分类、整理意义单元——从主题到编码；（3）浓缩和凝练——从编码到意义；（4）综合和概述——从总结到概念的提出。为了国内定性研究者在进行资料分析时有章可循，本文特别介绍该分析方法研制的背景、原则和流程，并比较不同定性资料分析方法的特点及优缺点，为医学定性研究者提供参考。

关键词: 定性研究, 系统性文本凝练, 文本挖掘, 方法学, 实施步骤