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目的 探讨心脏超声对高血压合并阵发性心房颤动患者的临床价值。方法 选择2017年9月至2018年12月收治的68例单纯高血压患者与68例高血压合并阵发性心房颤动患者分别作为对照组与研究组，均行心脏超声检查。比较两组的左室射血分数（LVEF）、左心室舒张末期内径（LVDd）、左心房内径（LAD）、室间隔厚度（IVST）、左心房最大容积（LAV_max）、最小容积（LAV_min）、左心房收缩前容积（LAV_pre）、左心房膨胀指数（LAEI）及主动射血分数（LAEF）。结果 研究组LVEF为（64.02±6“,”Objective To explore the clinical value of cardiac ultrasound in patients with hypertension complicated with paroxysmal atrial fibrillation.Methods From September 2017 to December 2018， 68 patients with simple hypertension and 68 patients with hypertension combined with paroxysmal atrial fibrillation were selected as the control group and the study group respectively， and all patients received cardiac ultrasound examination. Left ventricular ejection fraction (LVEF)， left ventricular end-diastolic diameter (LVDd)， left atrial diameter (LAD)， ventricular septum thickness (IVST)， left atrial maximum volume (LAV_max)， minimum volume (LAV_min)， left atrial presystolic volume (LAV_pre)， left atrial dilation index (LAEI) and active ejection fraction (LAEF) were compared between the two groups. Results In the study group， LVEF was (64.02±6.17)%， LVDd was (45.17±6.77) mm， LAD was (36.17±4.07) mm，IVST was (10.17±0.84) mm， E/A was (0.82±0.15)， and 31cases (45.56%) were mitral regurgitation， and those was (67.94±7.63)%， (45.33±6.94) mm，(31.02±3.82) mm， (10.20±0.91) mm， (0.60±0.12)， 8 cases (11.77%) respectively in the control group. There were significant differences in the incidence of LVEF， LAD， E/A and mitral regurgitation between the two groups (P＜0.05).In the study group， LAV_max was (35.47±4.00) mL/m^2， LAV_min (18.45±3.74) mL/m^2，LAV_pre was (24.30±3.91) mL/m^2， LAEI (1.04±0.31)% and LAEF was (0.49±0.17)%， and those were (29.15±4.64) mL/m^2， (11.26±2.93) mL/m^2，(14.26±4.17) mL/m^2， (1.33±0.51)%， (0.53±0.14)% respectively in the control group. There were significant differences in LAVI_max， LAVI_min， LAVI_pre，LAEI and LAEF between the two groups (P＜0.05). Conclusion Cardiac ultrasound can effectively evaluate the cardiac morphology and left atrial reserve function in patients with hypertension complicated with paroxysmal atrial fibrillation.