Tianjin , also known as the diamond of the Bohai Gulf and the gateway to the capital of the People's Republic of China , is one of the 4 municipalities directly under the Central Government of the People's Republic of China. And it is the third largest city in China only after Beijing and Shanghai.

The name of Tianjin was called at the beginning of the Yongle Years of the Ming Dynasty at first, which meant that the area passed through by the Son of Heaven-the emperor. At the second year of Yongle Years of the Ming Dynasty (1404), as a strategic point, Tianjin began to build city wall and defenses and called "Tianjinwei". In 1860, Tianjin became a trading port and the second biggest industry and commerce city and the biggest center of finance,commerce and trade in the north in which industry production and port trade were only lower than shanghai for a long time.Tianjin became a municipality directly under the Central Government of the People's Republic of China after founding of New China.

"10 tourism spots" of Tianjin have been set up, as: Huangyaguan Great Wall, the site of Dagu Fortification with Built-in cannons, Old Dule Temple in Jixian County, Tourism Area of Pan Mountain, Scenic Line along Haihe River, Water Park, Scenic Line along the Circulating Line, Ancient Cultural Street, Nanshi Food Street and Hotel Street and Tianjin TV Tower. Some natural protective areas, as the Geological Natural Protective Area in the Middle of Proterozoic Erathem, the Natural Second Growth Protective Area in Eight Immortals Mountain, the Natural Protective Area of Ancient Coastline and Damp Place have been decided as the national natural protective areas.

Good social environment is an important advantage of Tianjin. With good general mood of society, plain folkways, good market order, lower market price in the middle and big cities of China, Tianjin has been one of the best areas of China for its social public order in recent years. According to the statistics did by the National Statistic Bureau, the public order in Tianjin is the best, which are welcomed by the tourists at home and abroad as well as praised by the investors abroad. Through 4 years survey, Motorala Company has decided to put its office in the Development Area of Tianjin. They called Tianjin an eastern family which is full of warm in one of their investigation reports. According to incomplete statistics, more than 100 Hi-Tech projects have been set up in the New Coastal Region, as: oil chemical industry, ocean chemical industry, electronics, communication, biological products, metallurgy and machinery, etc. with which a patch of pillar industry have been formed.