Healthcare institutions are dedicated to minimizing medication errors and promoting their reporting. This study investigates the impact of simulation on nursing students' attitudes toward and intention to report medication errors. A quasi‐experimental one‐group pre–post–test study was conducted. Third‐year nursing students (N = 63) participated in a scenario‐based simulation for medication administration. Participants' errors were documented. Participants self‐reported attitudes toward medication administration safety and intention to report errors. The most reported error was "contraindicated in disease" (61%). The simulation increased attitudes of preparedness by the training program received (p < 0.01) and belief in the patient's involvement in preventing errors (p < 0.01), and decreased the belief that professional incompetence reveals errors (p = 0.015). Intention to report errors was influenced by medication error training received (p = 0.045), confidence in error reporting (p < 0.001), and a sense of responsibility to disclose errors (p = 0.001). Simulation effectively shapes attitudes and intentions regarding medication error reporting. Improving nursing students' awareness, skills, and clinical judgment can foster a safety culture and potentially reduce patient harm. Future research should examine the long‐term effects of simulation and its impact on reducing medication errors.