Free luggage allowance for China ordinary trains:
a. Children (children with free ticket included): 10 kg (22 pounds)
b. Diplomat: 35 kg (77 pounds)
c. Other passengers: 20 kg (44 pounds)
d. The total length of each item cannot exceed 130 cm.
e. Rod-shaped baggage should not exceed 200 cm in length and 20 kg (44 pounds) in weight.

Free luggage allowance for China Bullet trains and High-speed trains:
The baggage should not exceed 60cm, 35cm and 35cm respectively in length, width and height and the total weight cannot exceed 20kg.

For overweighted baggage, passenger should better check the baggage in advance to avoid unwanted trouble.