Since July 2005, the Dunhuang Research Institute has adopted an appointment-visit method for the Mogao Grottoes. This measure has rationally and effectively regulated and balanced the flow of tourists, on the one hand, strengthening the protection of the caves, and on the other hand, providing tourists with better quality Since the implementation of the appointment booking method, the number of people visiting Mogao Grottoes has increased year by year, and the annual tourist reception has increased from 450,000 in 2004 to 550,000 in 2006. From this we can infer:. ['The method of booking a visit to Mogao Caves provides convenience for tourists.', 'Reasonable allocation of human and material resources can maximize benefits.', 'Unbalanced visitor flow before Mogao Grottoes.', 'Scientific and rational use of natural and human resources can create greater value.']