目的　探讨超声心动图对小儿原发性心脏肿瘤的诊断价值。方法　对 14例原发性心脏肿瘤患儿的临床资料回顾性分析。结果　 14例中 ,超声心动图诊断心房肿瘤 (块 ) 6例 (4 2 9% ) ,其中粘液瘤 3例 ;心室肿瘤 3例(2 1 4% ) ;心包肿瘤 3例 (2 1 4% ) ;巨大肺动脉瘤 2例 (14 3 % )。 14例中 ,恶性肿瘤 2例 (14 3% )。超声显示部分病例伴随心脏畸形、下腔静脉扩张等异常。结论　超声心动图能确定心脏肿瘤的位置 ,可初步区分良性与恶性肿瘤 ,对心房粘液瘤和肺动脉瘤有确诊价值。 Objective To investigate the diagnostic value of echocardiography in children with primary cardiac tumors. Methods The clinical data of 14 children with primary cardiac tumors were retrospectively analyzed. Results Among the 14 cases, 6 cases (42.9%) were diagnosed by echocardiography, including 3 cases of myxoma, 3 cases of ventricular tumors (21.4%) and 3 cases of pericardial tumors (21.4%). Two cases of giant pulmonary aneurysm (14.3%). Of the 14 cases, 2 were malignant (14.3%). Ultrasound showed some cases with cardiac malformations, such as the expansion of inferior vena cava abnormalities. Conclusion Echocardiography can determine the location of cardiac tumors, which can initially differentiate between benign and malignant tumors and have definite value for atrial myxoma and pulmonary aneurysm.