The purpose of this study is to investigate the effects of service attitudes and service quality of food delivery O2O platform workers working in food delivery companies on customer emotional response and customer behavioral intentions. Research is needed to find factors that satisfy consumers in the food delivery market and factors that consumers value in the process of food delivery and to use them for effective marketing of restaurant and delivery companies. An online survey was conducted from November 1 to November 6, 2021 for customers who have used the delivery food service. Out of a total of 265 copies, 245 copies were used for analysis, excluding insincere responses. Through these research results, it is intended to derive theoretical and practical implications for the study of the importance of the service role of delivery workers and customer behavior, and to seek effective improvement directions for the delivery service of the O2O catering platform.