Luggage shipping is a form of logistics, referring to the service where the shipper entrusts a qualified company to transport goods to a specified location and deliver them to the recipient. This service is commonly used to transport passengers' luggage from the origin to the destination, especially during air travel. According to the Civil Aviation Administration of the country, there are specific restrictions and requirements for checked luggage. The weight of each piece of checked luggage cannot exceed 50 kilograms, and the dimensions should not exceed 40×60×100 cm. The free luggage allowance for each passenger varies according to cabin class, with first-class passengers (adults or children) entitled to 40 kg, business class passengers to 30 kg, and economy class passengers to 20 kg. Passengers with婴儿 tickets are not entitled to any free luggage allowance. During the trip, passengers can carry small personal items for free, but airlines have restrictions on size and weight. The Civil Aviation Administration stipulates that each passenger can carry one item, with dimensions not exceeding 20×40×55 cm and a weight not exceeding 5 kg, while first-class passengers can carry two items of up to 5 kg each.