Prior to the pandemic, it was difficult for small and medium (SME) food vendors in the food service industry to determine the most efficient distribution method for their products to consumers. The food delivery platform has increased client numbers and revenue for food service businesses. Throughout the COVID-19 outbreak, online food delivery services have become increasingly popular. The study applies the Theory of Planned Behavior (TPB) to investigate the adoption and retention of online food delivery services after the pandemic. This study used the quantitative methodology, with an online questionnaire as the data collection tool. This study successfully gathered 60 online food delivery users in the area. The finding indicates that using the TPB framework is valid and reliable for understanding online food delivery services' adoption andcontinuance use. Besides providing a summary of the conclusion, the study demonstrates that TPB could be utilized to assess the adoption of online food ordering platforms among food merchants.