Nan'ao "Grass Dragon Dance" is a traditional folk cultural activity formed by Nan'ao fishermen during their long-term life and labor at sea. It is about entertaining gods and people, and is carried out through worshipping grass dragons. It contains many cultural contents such as history, folklore, and art. "Grass Dragon Dance", also known as "Fire Dragon Dance", is a very distinctive custom of Nan'ao fishermen. In fact, the grass dragon dance in Nan'ao was very popular in the Qing Dynasty, and has been passed down to this day. Nowadays, the grass dragon dance is held on the second day of the Chinese New Year every year. The grass dragon dance is mainly divided into three parts: "tying the dragon", "dancing the dragon" and "sending the dragon". The grass dragon is made of bundles of sword grass from the mountains. On the morning of the second day of the Chinese New Year, the sword grass is cut and dried, and in the afternoon, the grass is tied into a dragon of 80 to 90 meters. Then dozens of 1.2-meter-long wooden sticks are used to firmly support the dragon's body. The whole grass dragon consists of a dragon head, dragon balls, dragon body and dragon tail. The dragon head needs to be lined with a large basket as the base, two flashlights as eyes, and a round mirror with a diameter of five inches is hung on the forehead of the dragon head. It is decorated with a bunch of red, green and yellow ornaments. In addition, a round dragon ball and a trident-shaped dragon tail are also required. Finally, the dragon head and body are filled with incense. At night, the tied straw dragon is moved to the small square in front of the Tianhou Temple and the dragon dance begins. More than a hundred fishermen are carefully selected as dragon dancers. They first light the incense on the straw dragon, and the straw dragon turns into a fire dragon. Accompanied by the gong and drum team, they first worship the Tianhou Temple and then worship three times to the south. Then the dragon dance begins, and a long fire dragon moves towards the fishermen's village. Guided by the dragon ball in front, the dragon ball moves, the dragon head moves with it, the dragon head moves to the right, and the dragon tail swings to the left, and the fire dragon moves forward in a winding way. The fire dragon dances to the street in front of the fishermen's village. Wherever it goes, every family lights red candles, offers fruits, water and wine, and sets off firecrackers and paper treasures. At this time, the whole fishing village is full of joy and festive atmosphere. Finally, the straw dragon dance team comes to the seaside and holds the "dragon transformation" ceremony. First, raise the dragon and bow three times to the northwest, then put the dragon head on, put the dragon tail down and pile them together. Then burn paper candles and dragon clothes, and finally light the grass dragon and set off firecrackers. All the men, women and children in the village come to send off the dragon. The onlookers stand on the seawall and throw colorful beads in their hands into the sea. At this time, firecrackers, gongs and drums sounded, the fire shot up to the sky, and the scene was spectacular. "Dancing the grass dragon" is a unique folk activity formed by the fishermen of Nan'ao in their long-term life and labor customs at sea. It has a wide range of mass and folk inheritance. It is a unique folk carnival for Nan'ao fishermen to entertain gods and people. The grass dragon dance in Nan'ao is to go up the mountain to cut grass on the same day, tie the dragon on the same day, dance the dragon on the same day, and transform the dragon on the same day. All procedures are completed within one day. This is a unique folk dance that is different from dragon dances anywhere else. "Dancing the grass dragon" embodies the ancient community sacrifice culture of Nan'ao fishermen and carries the historical and cultural information and original memory of Nan'ao fishermen. This has a certain reference value for studying the production and life history of Nan'ao fishermen. In addition, "Grass Dragon Dance" is one of the essences of Shenzhen fishermen's culture. It concentrates the thoughts and beliefs of fishermen's culture. It is also an important stage for Nan'ao fishermen to unite the people, communicate with the outside world and inherit folk customs. Therefore, it also has certain cultural and artistic value and social value.