Objective To explore the effects of a handbook tool on the time management ability of nursing interns. Methods Nursing interns were recruited by the cluster sampling method. Fifty students of grade 2020 were assigned to the control group and traditional teaching method was used in this group. Another 50 students were assigned to the experimental group. On the basis of traditional teaching,the handbook tool was used. The Adolescent Time Management Disposition Scale was used before the intervention and 3 months after the intervention. Results After the intervention,the total score of time management tendency,time monitoring view and time efficacy dimension of students in the experimental group were higher than those before the intervention（P<0.05）,while the score of time value dimension had no change（P>0.05）. After the intervention,the scores of the total scale and each dimension in the experimental group were higher than those in the control group（P<0.05）. Conclusion The handbook tool can effectively improve the time management ability of nursing interns.