The study aimed to assess the effect of storytelling on reducing intensity of nausea and vomiting in children undergoing chemotherapy. Design: Quasi-experimental research design was used in the study. Subjects: 200 children were equally and randomly assigned into two groups, the first was the control group, the second was story telling group, their age ranged from 3-6. Setting: the study conduct years at Oncology institute at Sohag City and Sohag university hospital. Tools: an Interview Structured Questionnaire was developed by the researcher and Rhodes Index of Nausea and Vomiting Likert scale was utilized for collecting the data. Results: statistically significant difference was detected among the studied children as regards the occurrence frequency of nausea per 24 hours with mean ± SD (1.63 ± 1.22 after the intervention compared to 3. 63 ± 2.88 before the intervention. A statistically significant difference was detected between the two groups as regards of vomiting before and after the intervention. Conclusion: children who exposed to story - telling experienced lower intensity of nausea and vomiting compared to children in the control group who received routine hospital care. Recommendations: They should include telling story and parents' education about non pharmacological management for nausea and vomiting.