ObjectiveTo describe the development and implementation of a comprehensive in situ simulation-based curriculum for anesthesia residents. DesignThis is a prospective study. SettingThis study was conducted at a university hospital. ParticipantsThis single-center prospective study included all 53 anesthesia residents enrolled in the anesthesia residency program. InterventionsIntroduction of routine high fidelity, in situ simulation program, which incorporates short sessions to train residents in the necessary skill sets and decision-making processes required in the operating room. Measurements and Main ResultsOur team conducted 182 individual 15-minute simulation sessions over three months during regular working hours. All 53 residents in our program actively participated in the simulations. Most residents engaged in at least 3 sessions, with an average participation rate of 3.4 per resident (ranging from 1 to 6 sessions). Residents completed an online anonymous survey, with a response rate of 71.7% (38 out of 53 residents) over the three-month period. The survey aimed to assess their overall impression and perceived contribution of this project to their training. ConclusionOur proposed teaching method can bridge the gap in resident training and enhance their critical reasoning to manage diverse clinical situations they may not experience during their residency.