〔Abstract〕 Objective To study the effect of Medical Union management model on blood pressure control and health behavior in the management of patients with essential hypertension in community. Methods 200 patients with essential hypertension in three communities in Dapeng new district, Shenzhen from January 2021 to January 2022 were randomly divided into a control group (100 cases) and an oberservation group (100 cases). The former applied routine management mode and the latter applied medical union management mode. The blood pressure level, awareness of hypertension related knowledge and health behavior scores of the two groups were compared and analyzed. Results After the intervention, the blood pressure level in the oberservation group was lower than that in the control group (diastolic and systolic blood pressure) with statisticed difference (P < 0.05). After the intervention, compared with the control group, the awareness of symptoms and risk factors in the observation group was significantly better (P < 0.05). After the intervention, there was no significant difference in smoking behavior scores between the two groups (P > 0.05). Compared with the control group, the observation group had higher scores of low salt, low-fat diet with statisticed differences (P < 0.05). Conclusion In the management of patients with essential hypertension in the community, the application of Medical Union management mode has ideal effect, which can promote the improvement of patients' blood pressure level, strengthen patients' self-management ability, facilitate the cultivation of healthy behavior, and has high feasibility of popularization.