Objective: To explore the effects of parent presence in the induction of anesthesia（PPIA）based on Wutong nursing

model on the cooperation during anesthesia induction and emergence delirium in children undergoing liver biopsy.

Methods: A total of 124 children with liver transplantation who underwent percutaneous liver biopsy from September 2021 to March 2022 were enrolled. Children were divided into two groups: control group（62 cases undergoing PPIA based on routine

nursing mode）and observation group （62 cases undergoing PPIA based on Wutong nursing model） using the random number table method. The changes of mean arterial pressure and heart rate at anesthesia induction（T0）, awaking time（T1）, 1 h（T2） after operation were compared between the two groups. ICC scale was used to evaluate the degree of cooperation during anesthesia induction（T0）. Postoperative delirium was evaluated and compared at awaking time （T1）, 1 h（T2）, 6 h （T3）, and 12 h （T4） after operation using PAED. The incidence of delirium was compared between the two groups.Results: There were no significant differences in mean arterial pressure and heart rate between the two groups at each time point（P >0.05）. The ICC score at T0 time of induction in the observation group was significantly lower than that in the control group. The PAED scores at T1 and T2 time were significantly lower than those in the control group （P<0.05）. There were no significant differences in PAED scores between the two groups at 6 h and 12 h after operation （P>0.05）. The incidence of delirium in the observation group was significantly lower than the control group （P<0.05）. Conclusion: PPIA based on Wutong nursing model can improve the degree of cooperation during anesthesia induction and reduce the incidence of delirium in awakening period in children undergong liver biopsy after liver transplantation. It is effective to accelerate the rehabilitation of children and improve the safety and comfort of children during perioperative period.