As a national intangible cultural heritage,Tianjin Mazu Fair is one of the windows to show the city of Tianjin. What's more, we will know Mazu worshipping in Tianjin in order to understand the ancient fair with 300 hundred years of history. Mazu is the guardian God for fishermen living by the sea. The worshipping for Mazu was spread to the northern coastal city of Tianjin. To celebrate the birth of Mazu, the carnival activity of performance in Tianjin called Flower Fair came out. The flower fair was originally aimed to amuse the gods and pray for good weather for the crops, which was then called as Tianjin Mazu Fair by the local people after it was praised during the reign of Emperor Qianlong in Qing dynasty. Among the several hundreds of ancient fairs in the past, there are more than 30 kinds of ancient fairs are still popular at present with the change of times. With the protection of the government, the ancient fairs are gradually revived and find a way to survive.