To evaluate the epidemiological survey quality for foodborne disease outbreak events in Gansu, and to provide references for investigation, disposal and report.Methods Collecting epidemiological investigation reports from 2012 to 2014, and evaluating the reports according to the requirements of Foodborne Disease Handle Standards and Guidelines. Results Among 52 reports of outbreak incidents, it was ubiquitous that the descriptive epidemiological analysis was not systematic and detailed. Food hygiene investigation focused on the general hygiene investigation, while ignored the investigation of the outbreak cause. The lab evidence of some incidents was not enough to determine the cause.Conclusion There were much deficiency in epidemiological investigation quality of foodborne disease outbreak, including field investigation, data analysis, laboratory results interpreting, etc. Therefore, it was necessary to enhancing the training for emergency preparedness.