Objective:To explore the effects of diary research-based communication pattern on migration stress of first-degree relatives of elderly patients transferred out of ICU.Methods:Totally 86 elderly patients transferred out of ICU postoperatively at the 2nd Affiliated Hospital of Wenzhou Medical University from October 2017 to April 2018 were selected by convenient sampling and divided into the control group ( n=43, admitted between October and December 2017) and the observation group ( n=43, admitted between January and April 2018) according to admission time. Patients in the control group underwent routine communication, while patients in the observation group conducted communication based on diary research. The migration stress levels of the first-degree relatives were compared between the two groups. Results:There was no significant difference in migration stress levels between the first-degree relatives of the two groups before the intervention ( P>0.05) . After the intervention, the level of migration stress of the first-degree relatives in the observation group was lower than that in the control group, and the difference was statistically significant ( t=3.598, P<0.01) . Conclusions:The communication model based on diary research can effectively reduce the level of migration stress among the first-degree relatives of elderly patients who are transferred out of ICU postoperatively.