Objective To explore the effect of preoperative behavior training and psychological support on the somatic function and negative emotions of chronic rhino-sinusitis patients after functional endoscopic sinus surgery.Methods A retrospective study was conducted in 140 chronic rhino-sinusitis patients who received functional endoscopic sinus surgery in Zhoushan Hospital from January 2017 to June 2018,and they were divided into control group and observation group according to the different intervention method,with 70 cases in each group.The control group was given routine care,and the observation group received preoperative behavior training combined with psychological support.The nursing effect of the two groups was compared.Results The scores of self-rating anxiety scale and the self-rating depression scale of the observation group after intervention were (45.06 ± 2.34) points,(49.65 ± 3.11) points,respectively,which of the control group were (52.65 ± 4.88) points,(58.66 ± 5.17) points,respectively,the differences between the two groups were statistically significant (t =8.329,9.017,all P ＜ 0.05).The scores of physical health,mental health,social adaptation,psychical health and quality of life in the observation group were (43.15 ± 3.74) points,(23.35 ± 2.31) points,(43.22 ± 2.67) points,(55.47 ± 2.72) points,(167.89 ± 9.44) points,respectively,which were higher than those in the control group,the differences between the two groupswere statistically significant (t =8.038,12.018,11.328,10.771,14.028,all P ＜ 0.05).Conclusion The application of preoperative behavior training and psychological support in functional endoscopic sinus surgery can improve chronic rhino-sinusitis patients'postoperative symptoms comfort,alleviate patients'negative mental state,and improve their quality of life,which is worthy of clinical application.