The museum has collected around 200,000 varieties of stamps, foreign and Chinese, around 100 million stamps in total. It has also collected some relics of postal history, including the first set ofhaiguan dalong(huge dragon of the customs) stamps issued in the fourth year (1878) during the Guangxu reign of the Qing Dynasty (1644-1911), the stamp of Red Printing with Smaller Characters of Additional One Yuan Stamped issued in 1897, the first Black Penny stamp in the world issued in 1840 in the Great Britain, the first set of 46 stamps issued by the Republic of China in 1912 with the characters of Temporary Neutrality stamped, and the stamp of Red Postage of Southwestern Jiangxi issued in 1930. All these stamps have become the valuable historic relics in the world.
The main composition of the Museum collections is the archives of the postal service run by the customs, the state postal service and the postal delivery department for issuing stamps since 1878 in the Qing Dynasty and the various kinds of stamps issued by the aggressive organs of imperialism in China; the archives of the Government of the Northern Warlords (1912-1927), the Nanjing KMT Regime and the local regimes for issuing stamps since the first year of the Republic of China in 1912; the archives of the puppet regimes in the Northeastern China, North China, Mongolia and Xinjiang for issuing various kinds of stamps; the various kinds of stamps issued during the period of the Revolutionary War of the Chinese People, by the various revolutionary base areas and liberated areas since 1930 and part of the archives; the various kinds of stamps issued by the Ministry of Post and Telecommunications, the archives, the original postal service maps, the original engraved plates, the artworks of the well-known domestic artists, and the stamp information materials collected from all fields or donated to the state by patriotic personages since the founding of the People's Republic of China; the stamps obtained from the exchanges with over 200 countries and regions in the world through the Universal Postal Union and the member nations of the Union; and the foreign and domestic philatelic books, books of fine arts, books of historic relics and other important books and information materials related to postal service and stamps.
The museum has held the basic exhibition of postal service and stamps, the stamp exhibition of special topics, the exhibition of philatelists' collections, and the stamp exhibitions of cultural exchanges with other countries.