The luggage allowance for the high-speed train from Xi'an to Chengdu is as follows: 1.Each piece of luggage must have external dimensions (length + width + height) ≤ 130 cm and weigh ≤ 20 kg (for adults). 2.Rod-shaped items must be ≤ 200 cm in length. 3.Foldable wheelchairs are not included in these limits.