Objective To explore the application effect of nursing intervention based on the mindfulness-attention-acceptance theory in children with bronchopneumonia.Methods Totally 127 children with bronchopneumonia admitted to the First Affiliated Hospital of Xinjiang Medical University from January to July 2023 were selected by convenience sampling.They were randomly divided into a control group and an observation group according to a random number table.The control group(63 cases)received routine nursing intervention,while the observation group(64 cases)received nursing intervention based on the mindfulness-attention-acceptance theory in addition to the routine nursing intervention.The improvement in psychological resilience,coping styles,and emotional behaviors of the two groups were compared before and after the intervention.Results After the intervention,the scores of all dimensions of the Psychological Resilience Scale in both groups were higher than that before the intervention,with the observation group scoring higher than the control group(P<0.05).The observation group scored higher on all dimensions of positive coping and lower on all dimensions of negative coping compared to the control group(P<0.05).The prosocial behavior dimension score of the observation group was higher than that of the control group,while the scores of emotional symptoms,conduct problems,and hyperactivity-inattention dimensions were lower than those of the control group(P<0.05).Conclusions The application of nursing intervention based on the mindfulness-attention-acceptance theory in children with bronchopneumonia can effectively improve their psychological resilience,coping styles,and emotional behaviors.