Road-blocking song is a unique variety of Dong folk songs, which is rich in color and suitable for different occasions. At the Dong wedding in Sanjiang, the bride went back to her family from her husband's family, and the man's village sent a team to accompany her to the woman's village. The women's village uses spinning wheels, looms, oil tea filters, Chinese fir tails, straw grass, dried peppers, grapefruit branches and leaves, bamboo baskets, chicken cages, wooden horses and windmills to block the intersection step by step. The singers lined up and many relatives watched and cheered. The two sides sang "Road-blocking Songs" and "Road-opening Songs". The men's team sang correctly and the women's team moved out of the village. Finally, all the road barriers were removed and the guests were welcomed into the village. In Sanjiang and Longsheng areas of Guangxi, during the Mid-Autumn Festival, the Lusheng team of Kezhai came outside the main village, and the main village also set up heavy roadblocks with various utensils and sundries for Dong's life and work. The host and guests spread out the song, which was better than what was sung at the wedding. On this occasion, compared with talent, knowledge and wit, friendship is increased, goal is the first, and love is born. When the visiting team sings correctly, it is the same as when the main village is evacuated. If the visiting team can't answer the song, they can set off firecrackers to show their respect for the main village. The main village will remove the roadblocks and welcome guests in and out of the village.