中国高铁网络全解：线路图与购票技巧 | China High-Speed Rail: Network Map & Booking Tips

网络规模 / Network Scale

中国高铁运营里程超4.5万公里，占全球高铁总里程70%以上。四纵四横主干网连接全国主要城市，京沪、京广、沪昆是客流最大的三条干线。

China's HSR network exceeds 45,000 km — over 70% of the world's total. The "Four Vertical and Four Horizontal" backbone connects all major cities. Beijing–Shanghai, Beijing–Guangzhou, and Shanghai–Kunming are the three busiest trunk lines.

购票技巧 / Booking Tips

12306提前30天开售，热门线路（京沪、京广）节假日前后票源紧张，建议开售当天抢购。候补购票功能可在无票时自动抢票，成功率较高。

Tickets go on sale 30 days in advance on 12306. Popular routes (Beijing–Shanghai, Beijing–Guangzhou) sell out fast around holidays — buy on the first day of sale. The "waitlist" feature automatically grabs tickets when they become available, with a high success rate.

车次类型 / Train Types

晚点与改签 / Delays & Changes

高铁准点率超95%。如遇晚点超2小时，可申请全额退票。改签免费（当天内），退票手续费：开车前15分钟以上退票收5%手续费。