目的 了解护士肿瘤心脏病学的知识水平、学习需求以及对该领域患者的管理态度，并探究其影响因素。 方法 便利选取（曾）在肿瘤和（或）心脏病相关科室工作的393名护士为研究对象，采用自行设计的护士肿瘤心脏病学知识水平、学习需求及管理态度调查问卷进行调查。 结果 393名护士肿瘤心脏病学相关知识正确率偏低，10题中仅有3道题正确率高于60%，护士肿瘤心脏病学的学习需求得分为（20.56±3.21）分，管理态度得分为（21.67±3.00）分。单因素分析显示，不同科室、工作经历护士的知识水平差异有统计学意义（P<0.05）；不同医院类型、职称、工作经历、所在医院具备肿瘤心脏病服务或设施情况的护士，其学习需求差异有统计学意义（P<0.05）；不同学历、工作经历、所在医院具备肿瘤心脏病服务或设施情况的护士，其管理态度差异有统计学意义（P<0.05）。 结论 护士群体肿瘤心脏病学相关知识水平有待提高，学习需求强烈，应加强对护士肿瘤心脏病管理方面的培训，普及相关理论知识，提升临床护士对肿瘤心脏病患者的护理质量。

Objective To explore the current situation and influencing factors of nurses’ knowledge level，learning needs and management attitude toward cardio-oncology. Methods A total of 393 nurses with experience in cancer and/or heart disease nursing were selected as participants through convenience sampling. The self-designed Questionnaire of Nurses’ Learning Needs and Management Attitude towards Cancer and Heart Disease was used for investigation. Results The correct rate of 393 nurses’ knowledge about cardio-oncology was low. Only three of the 10 questions reached a correct rate of more than 60%. The scores of nurses’ learning needs and management attitude were（20.56±3.21） and（21.67±3.00），respectively. Univariate analysis showed that nurses in different departments and working experiences had different knowledge levels of cardio-oncology（P<0.05）. Nurses worked in different hospital types，professional titles，work experience，and cardio-oncology services or facilities in their hospitals had different learning needs（P<0.05）. Nurses with different educational backgrounds，work experience，and cardio-oncology services or facilities in their hospitals held different management attitudes（P<0.05）. Conclusion Nurses hold a strong demand for knowledge education，whose knowledge level of cardio-oncology needs to be improved. Nursing managers should strengthen the training of nurses in the management of cardio-oncology，popularize relevant theoretical knowledge to further improve the nursing quality of clinical nurses.