Since the opening of China Europe Express train through Manzhouli Port in 2013, the number of inbound and outbound China Europe Express Trains at Manzhouli Port has continued to grow. In 2020, 3548 China Europe trains will pass through Manzhouli Port, with a year-on-year increase of 35.1%; The number of China Europe trains passing through Manzhouli Port exceeded 4000 for the first time in 2021. It is understood that in the first half of this year, the expansion and reconstruction project of Manzhouli station international freight yard was successfully completed, the daily container replacement capacity of the station was increased from 420 TEUs to 840 TEUs, and the train number of railway freight cars was changed from manual input to automatic identification, which greatly improved the vehicle operation efficiency. "It took Manzhouli station more than six years to complete the first 5000 trains, and it took only one year from 10000 to 15000 trains. Under the epidemic situation, the port realized a counter trend growth." Said Liu Hongliang, deputy head of Manzhouli station. Heilongjiang Province is the "frontier" of China's opening up to the north. In recent years, the port business environment of Heilongjiang Province has been continuously optimized, which has injected a strong impetus into the development of foreign trade. "The Customs has opened up a green channel for the import of chemical fertilizers, handled customs clearance formalities in a timely and efficient manner, given priority to inspection and rapid release." Deng Guannan, customs broker of Suifenhe qianfengrui International Cargo Transportation Agency Co., Ltd., said that this not only effectively shortened the customs clearance time, but also saved the operating costs for the enterprise. According to the relevant person in charge of Harbin customs, at present, various preferential reform measures of the customs have been fully implemented in Heilongjiang Province. Customs clearance modes such as "customs clearance integration", "Internet + 24-hour appointment customs clearance" and "declaration in advance" can be independently selected by enterprises, and the efficiency of customs clearance of enterprises can be greatly improved by means of guarantee release, release before inspection, and acceptance of inspection results of third-party institutions. It is reported that in order to ensure the rapid entry and exit of the China Europe Express train, Suifenhe station has opened a green channel for cargo transportation and reduced the time of non production operations. While doing well in epidemic prevention in all links, the staff have communicated with the customs and freight forwarding companies in advance to share information. Manzhouli station adheres to the principle of "common prevention, joint prevention and control", strengthens the management of port workplaces, equipment and facilities and staff, cooperates with local epidemic prevention departments to do a good job in sampling inspection and preventive disinfection of port goods, seals and manages more than 1200 people in more than 40 key posts such as handover personnel, and regularly organizes nucleic acid testing. Promote the steady development of foreign trade at present, there are 22 operation lines of China Europe express trains passing through Manzhouli and Suifenhe ports. The main collection places cover dozens of cities such as Guangzhou and Suzhou in China. The express trains reach more than ten countries in Europe. The types of goods transported are increasingly rich, including daily necessities and industrial machinery. Harbin Dongjian Machinery Manufacturing Co., Ltd. has exported large-scale construction equipment to Europe for many years. In 2017, the company's products began to take the China Europe train, which greatly shortened the transportation time. According to the data of Harbin customs, in the first seven months of this year, the total import and export value of Heilongjiang province's goods trade was 145.06 billion yuan, an increase of 31.9% over the same period of last year. Among them, the total import and export value of Heilongjiang Province to countries along the "the Belt and Road" was 114.35 billion yuan, an increase of 38.9% over the same period of last year. Wang Xianhua, deputy director of Heilongjiang Provincial Department of Commerce, introduced that Heilongjiang Province will continue to