Objectives: This study aimed to investigate the application effect of internet technology for managing patients with hypertension in a medical center. Methods: From December 2017 to December 2018, 400 patients with hypertension in two community health service stations affiliated to Beijing Shijitan Hospital (China) were enrolled in the present study. According to the alternating method, these patients were divided into a control group (routine medical hypertension management) and an e-intervention group (internet technical secondary hypertension management). Blood pressure levels after intervention in both groups, as well as blood pressure control, medication compliance, active health behaviors, and two-way referral rate were observed. Results: Following the interventions, blood pressure levels were significantly lower in the e-intervention group compared with the control group, and the proportion of good blood pressure control, medication compliance, active health behavior, and two-way referral were all significantly higher compared with the control group. Conclusion: The application of internet technology in medical associations may help to decrease patients’ blood pressure and improve the effective management of middle-aged and older patients with hypertension in communities.