Objective To explore the application of diet diary nutrition management in the perioperative period of spinal tuberculosis patients.Methods Ninety-nine spinal tuberculosis patients in orthopedics department of Guangzhou Chest Hospital from August 2021 to June 2022 were selected in the current study,who were treated with standard anti-tuberculosis drugs.A total of 48 patients with spinal tuberculosis admitted from August to December 2021 were included as a control group;51 patients with spinal tuberculosis admitted from January to June 2022 were included as an observation group.In the observation group,there were 40 males and 11 females,aged(57.94±20.98)years,with a course of disease of(8.84±3.54)months.In the control group,there were 35 males and 13 females,aged(53.00±20.07)years,with a course of disease of(8.77± 3.78)months.The control group was given perioperative routine nutrition care,and the observation group was given diet diary nutrition management on the basis of routine care:empowering education was given to patients,including explaining the importance of nutrition management,conducting nutritional risk assessment,formulating nutrition plans,conducting nutrition intervention,and nutrition education.The Nutritional Risk Screening 2002(NRS2002)score and levels of total protein(TP),serum albumin(ALB),transferrin(TRF),and prealbumin(PAB)were observed within 24 h after admission and 2 weeks after surgery in both groups.x2 test and independent sample t test were used.Results Two weeks after surgery,33.33%(17/51)of the patients in the observation group had a nutritional risk score<3,which was significantly higher than 12.50%(6/48)in the control group,x2test showed that there was a statistically significant difference(P<0.05).Two weeks after surgery,the levels of ALB and TRF in the control group decreased,but the level of PAB increased,and the levels of ALB,TRF,and PAB in the observation group increased;there were statistically significant differences between the two groups(all P<0.05).Conclusion Diet diary nutritional management can reduce the nutritional risk and improve the nutritional status in patients with spinal tuberculosis.