Objective　To investigate whether the eight- year program students retain the skills from the endoscopy simulator gastroscopy training. Methods　4 trainees accepted virtual reality simulator gastroscopy training and performed a standardized VR gastroscopy scenario at the end of training， and after a median 12 months without practice（retention）. The intensified training was done by trainees based on the differences between the training end and the retention for a median 12 months and the number of intensified training times was found. Results　The significant differences existed in the overinsufflation and operational force and time. The score at the training end was better than after retention. Through the average 5.5 times intensified trainings the original levels could be reached. Conclusion　Through En-doscopy Simulator the key skills could be retained well and through a little training the original levels could also be reached.