Virtual Museum can present user experience in visualizing the real museum. This technology can give better communication and interaction with visitors. According to the preliminary study, most tourists have difficulty getting information about Muzium Negara and the website of Muzium Negara which does not provide enough information about galleries and collections before, during and after visiting the museum. In this study, heuristic evaluation was conducted with six experts in evaluating Virtual Muzium Negara prototyping. Several comments from experts for improving the prototyping obtained. The findings show the experts' comments are helpful in improving the prototype and the result of the Content Validity Index is acceptable. Hence, it is hoped that the Virtual Muzium Negara prototyping can give several information to tourist and this can encourage them to visit Muzium Negara.