Objective To explore the effect of Internet+cardiac rehabilitation on hypertension patients with coronary heart disease. Methods 80 patients with hypertension and coronary heart disease admitted to our hospital from January 2022 to April 2023 were randomly divided into the combined group （n = 40） and the conventional group （n = 40）. Both groups were given routine cardiac rehabilitation interventions. The combined group combined adoptionof the Internet for continuous interventionson the basis of routine cardiac rehabilitation interventions. Compare the oxygen uptake， blood pressure， compliance， and self-management scores between two groups before intervention and three months after discharge. Results The AT Mets， AT VO₂， peak VO₂， and expected value compliance ratio in the combined group were all higher than those in the conventional group （P < 0.05）； The systolic and diastolic blood pressure in the combination group were lower than those in the control group， and the proportion of complete compliance was significantly higher than that in the control group （P < 0.05）； The self-management scores of the joint group were higher than those of the conventional group （P < 0.05）. Conclusion The continuous interventions of Internet plus cardiac rehabilitation can control the blood pressure of patients with hypertension and coronary heart disease， and patients' compliance behavior is significantly improved， andthus improving patients' self-management ability， which can be used for reference and promotion in clinical practice.