Objective. To explore the effect of WeChat-based health education combined with the Satir model on self-management behaviors and social adaptation in colorectal cancer (CRC) patients during the perioperative period. Methods. A total of 100 CRC patients treated in our hospital from April 2018 to April 2020 were selected as the objects for the retrospective study and divided into the observation group and the reference group according to their admission order, with 50 cases each. The patients in both groups accepted health education based on the WeChat platform, and additionally, those in the observation group received the Satir group intervention on self-approval for 3 months to compare the patients’ scores on self-management behaviors, social adaptation, and self-care agency before and after the intervention between the two groups. Results. Between the observation group and the reference group, the patients’ general information, including age, gender ratio, and course of the disease, was not statistically different (
P
>
0.05
). After nursing intervention, the scores on patients’ self-management behaviors, social adaptation, and self-care agency were significantly higher in the observation group than in the reference group (
P
<
0.001
). Conclusion. Combining the WeChat-based health education with the Satir model can improve the self-management awareness in the CRC patients during the perioperative period, enhance their self-care agency and self-management behaviors, and promote their social adaptation, demonstrating that such a nursing intervention model is worthy of clinical promotion.