Objective: Heart rate recovery after treadmill exercise testing reflects autonomic dysfunction and is related to higher major adverse cardiac events. Numerous studies suggested the correlation of Heart rate recovery with hypertension and left ventricular remodeling. This study aimed to assess factors related to HRR in coronary artery disease patients who have undergone revascularization and Beta-blocker. Design and method: This cross-sectional study includes CAD patients who came to the outpatient clinic for six to 24 months after hospitalization in Dr. Hasan Sadikin General Hospital from February to August 2021. All patients undergo treadmill tests and transthoracic echocardiography. The treadmill stress test is conducted using Bruce or Modified Bruce Protocol. Transthoracic echocardiography is conducted using GE Vivid 7 ultrasound machine. Heart rate recovery at one minute defines as abnormal if < 18 beats per minute. The t test was used for continuous variables, and the Chi-square or Fisher exact test was used for categorical data. A p-value < 0.05 was considered statistically significant. Results: A total of 63 consecutive coronary artery disease patients with (n = 43, HP) and without (n = 20, NHP) were included in this study. All subjects underwent treadmill exercise testing. Up to 90% of patients have undergone revascularization by percutaneous coronary intervention or coronary artery bypass graft. All patients on Beta-blocker therapy. Peak heart rate (152 ± 29 vs. 132 ± 24, p = 0.010) and Heart rate recovery at one minute (129 ± 18 vs. 118 ± 19, p = 0.025) were significantly higher in the NHP group. Older age and lower peak heart rate were associated with lower heart rate recovery at one minute in the HP group. The previous history, such as diabetes, smoking history, ejection fraction, left wall mass index, and functional capacity, does not correlate with heart rate recovery at one minute in NHP or HP group. Conclusion: The present results demonstrate that heart rate recovery at one minute is affected by older age and peak heart rate. The left ventricular remodelling and other risk factors and their associations in coronary artery disease population who have undergone revascularization and are on beta-blocker medications should be investigated more with larger samples.