Background: Hypertension is a rapidly growing epidemic in China. Yet it remains inadequately controlled, especially in rural areas. Internet has shown potential for better health management in different settings; however, few studies have investigated its role in hypertension management in China. Objective: Our study aimed to examine the association between Internet access and hypertension awareness, treatment and control among elderly Chinese adults, and to investigate whether the association between Internet access and hypertension management differed between those lived in urban areas and those lived in rural areas. Methods: Data were obtained from the nationally representative survey of the China Health and Retirement Longitudinal Study in 2011. Hypertension was defined as (i) an average systolic blood pressure of ≥ 140 mm Hg, and/or an average diastolic blood pressure of ≥ 90 mm Hg; and/or (ii) currently taking antihypertensive medications. Outcome assessed included hypertension awareness, treatment and control. The key independent variable was defined as whether one had Internet access at home. Multivariate logistic regressions were performed for each of the three outcomes. Results: Among 5135 hypertensive respondents (62.4 ± 9.9 years; 45.8% men), 12·9% had Internet access at home. Compared to those had no Internet access, Internet access was positively associated with hypertension awareness (odds ratio, 1.36 [1.07-1.73]) and treatment (odds ratio, 1.38 [1.09-1.75], but not control (odds ratio, 1.19 [0.90-1.58]). Internet access reduced urban-rural disparity in hypertension awareness by 9.6 percentage points (P = 0.02), treatment by 8.3 percentage points (P = 0.05), but not in control. In addition, the moderating effect of Internet access on urban-rural disparities in hypertension management was larger among females. The decreased urban-rural disparities were primarily driven by that Internet access improved the management level in rural areas. Conclusions: Strategies for reducing the disparities in hypertension management and overall disease burden of hypertension among elderly population should consider Internet as a platform.