[目的/意义]探索学者的科研合作与其跨学科性的关系，以期为从事跨学科研究的学者优化自身科研合作模式提供参考建议，为在培养跨学科人才的过程中优化科研合作策略提供依据。[方法/过程]基于普赖斯核心作者分布定律选取学者。基于Web of Science论文数据构建作者共现网络，用社会网络指标点度中心性测度合作规模，点聚集系数测度团体合作率，国际合作论文量占比测度国际合作率；基于Rao-stirling指数测度学者的跨学科性。从学者个体层面出发，分析各指标间的关系。[结果/结论]以天体物理学领域学者为研究对象，研究结果表明学者的合作规模、团体合作率、国际合作率都与其跨学科性显著正相关，合作规模、团体合作率、国际合作率为影响学者跨学科性相关表现的因素，进而推断学者扩大合作规模、参与团体合作和国际合作有助于其输入跨学科知识，从而完善自身知识结构，产出高质量研究成果。

[Purpose/Significance] The study explored the relationship between scholars' scientific research cooperation and interdisciplinarity, in order to provide suggestions for scholars engaged in interdisciplinary research to improve their own cooperation modes, and evidence for optimizing cooperation strategies in the process of cultivating interdisciplinary talents. [Method/Process] Scholars are selected according to Price core author distribution theory. Based on Web of Science data, the study constructed the co-occurrence network of authors, used node degree centrality to measure the scale of cooperation, node clustering coefficient to measure the group cooperation rate, and proportion of international cooperation papers to measure the international cooperation rate; measured interdisciplinarity of scholars based on Rao-stirling. From the individual level, analyzed the relationship between scientific research cooperation and interdisciplinarity. [Result/Conclusion] Taking scholars in astrophysics as an example, the study found that the cooperation scale, group and international cooperation rate of scholars are significantly positively correlated with their interdisciplinarity. They are the factors that affect scholars' interdisciplinarity. And then infer that expansion of cooperation scale, participating in teamwork and international cooperation will all help them absorb more interdisciplinary knowledge, improve knowledge structure, and produce high-quality researches.