[目的/意义] 技术融合是技术创新的重要手段，具有重大的经济社会意义，已经逐步成为国家科技战略的重要内容。[方法/过程] 在梳理已有技术融合概念，阐明技术融合研究意义的基础上，明确技术融合研究过程，并对数据集构建、技术领域界定和融合分析各阶段所用方法进行对比分析。[结果/结论] 以发现当前研究的不足，提出进一步研究方向，对推动技术融合研究具有重要意义。

[Purpose/significance] Technology convergence is a significant means of technological innovation, plays an important role in economic and social development, and has gradually become an important part of the national science and technology strategy. [Method/process] On the base of the summary of its concept and the clarification of its significance of technology convergence study, the paper pointed out its research stages, and made comparative analysis of the methods in data collection, technosphere identification and convergence analysis. [Result/conclusion] Finally, it concludes the shortages of existing studies and the further research directions, which can deepen the study on technology convergence.