The high-speed train from Kunming to Hong Kong requires a visa. Kunming to Hong Kong and Macao Pass, commonly known as the Two-way Permit, is a travel document issued by the People's Republic of China and the Exit-Entry Administration of the Ministry of Public Security of China to China mainland residents for private travel, visiting relatives, engaging in business, training, employment, study abroad and other non-official activities. Before coming to Hong Kong and Macao, you must obtain an endorsement issued by the mainland public security department for the purpose of coming to Hong Kong and Macao, that is, a visa. You must have a Hong Kong and Macao Pass to go to Hong Kong, and you also need to take the high-speed train, so you need a visa to go to Hong Kong for the high-speed train.