文章构建了涵盖156个学科方向的学科交叉网络，对知识领域内的学科交叉状态以及学科交叉对领域知识研究状况的影响进行分析。研究表明，领域知识中的学科交叉现象存在一定程度的小世界特征和近似的无标度分布特征；学科交叉与学科发文数量具有较强的正相关关系；学科交叉与领域中高水平论文的相关性较弱。

This article constructs an interdisciplinary network covering 156 discipline orientations, and analyzes the interdisciplinary state of domain knowledge and the impact of interdisciplinary on the research status of domain knowledge. The results show that the interdisciplinary phenomenon in domain knowledge has a certain degree of small world characteristics and approximate scale-free distribution characteristics; the interdisciplinary has a strong positive correlation with the number of subject publications; the interdisciplinary is less relevant to high-level papers in domain knowledge.