Chengdu University is in chenghua district and Vientiane City is also in chenghua district, so the most convenient way from Chengdu University to Vientiane City is to take the subway. At present, the subway lines in Chengdu are very perfect. From Chengda to Vientiane City, you need to take Metro Line 3 and pass several transfer stations along the way, such as Jinsha Museum, Dong Jiao Memory, and bustling square. But please note that the subway may be crowded during rush hours. Planning your trip in advance and avoiding rush hours can avoid congestion. In short, it is very convenient to take Metro Line 3 from Chengdu University to Vientiane City, which can greatly save the trouble of traffic congestion.