Situated in north Austria, Linz is the capital of the Sanao State. It has the biggest port on the upper reaches of the Danube River, and is also the industrial, business and communication hub. Established in the 13th century, the city has a population of 203 thousand in 1971. There are many cultural relics including St. Martin Church built in the 8th century and the Town Hall built in the 7th century. The State Museum has many collections including paintings, folk art works and Roman craftworks.

Linz¡¯s major industries including iron & steel, chemical, machinery, timber processing and textile. In 1938, the city built the Union Steel Plant and the Chemical Plant. During the years of 1948-1952, The Union Steel Plant invented oxygen furnace steel-making techniques, which was promoted to other countries of the whole world. The Chemical Fiber Corporation in the suburb of Linz has kept trade relationships with China for over 20 years. The light industries include wool and cotton spinning, velvet and carpet making. Food industry is also famous in the world for its excellent bacon skills. Linz is a business center with businessmen from all over the world gathering here every year. In 1832, the first railway in Europe was built in Linz so the history of train transportation began. There are developed canals in Linz with a great number of big cargo ships and luxurious yachts sailing in.

Linz put importance on culture and education causes and set up literature councils, literature council libraries, seminaries, teachers colleges, art institutes, handicraft institutes, martial training courts, dancing and horsemanship schools, schools for the blind and dumb, and the famous Brookena Musical Institute. The musicians such as Mozart, Beethoven, and Schubert all had ever been living in Linz during their music career.

In 1983, Linz and Chengdu were concluded as sister cities.