The Mulao people generally have a small family system, and children separate from their parents and brothers soon after they get married. The division of labor between men and women is not very strict. Men do more heavy manual labor. In addition to housework, women can also take on heavy tasks such as plowing, harrowing, and threshing. In the past, it was common for parents to arrange marriages. Although young men and women could fall in love, they could only get married with the consent of both parents. People with the same surname could not marry, and widows who remarried must obtain the consent of their six-room family. In addition to getting to know each other during festivals, gatherings and markets, the main way for Mulao men and women to fall in love is to exchange songs and make friends during "walking". The seasons for "walking" are March in spring and golden autumn in August. Young people dressed in costumes, men and women, go to the market to find partners for singing. After finding a satisfactory opponent, they invite them to the beautiful hillside lawn to start singing duets. Using the song as a matchmaker, they ask and answer questions to satisfy each other and give each other tokens. Finally, the matchmaker is asked to inform the parents and determine the wedding date.

The characteristic of early Mulao marriages was that the woman "sought the man for goods." This custom is because there was a period in history when the Mulao people had more women than men. This imbalance in gender ratio caused the woman's family to give generous financial gifts to the man's family, otherwise it would be difficult to get married. Later, the phenomenon of "getting married" appeared. It has changed the habit of women seeking men and turned it into men seeking women. It is first introduced by the matchmaker. After both parties agree, the groom's family picks up a load of wine and meat and puts it on the roadside to avoid it. Afterwards, the parents of the woman’s family took their daughter and relatives to the meat and wine basket, had a hearty meal and took the rest of the wine and meat home. The next day, the girl's family responded to the south in the same way. "Getting married" is the first step in getting married. Aiming to explore each other’s background. After "getting married" comes marriage. When getting married, the man selects two beautiful girls to go with the matchmaker to meet the bride. The bride was accompanied by more than ten women. Each person holds a paper umbrella in his hand to cover the bride from outsiders. After arriving at the husband's house, the bride's head is covered with a black cloth and she enters the bridal chamber. The custom of "covering one's head with black cloth" made the bride feel depressed and uncomfortable, which aroused people's dissatisfaction. In the later period, this custom gradually disappeared. In addition, "not leaving the husband's house" is also one of the ancient wedding customs of the Mulao people. "Not leaving the husband's house" means that the bride cannot live in the groom's house after marriage. Before dawn on the second day after the wedding, the bride bid farewell to her husband's family and returned to her parents' home with her female companion. Then I will return once in spring and autumn when the farming season is busy. The season of return and the number of days of residence are not limited until the third year. In this way, traveling back and forth between the two families sometimes lasted for three to five years, sometimes for seven or eight years. This custom did more harm than good and later tended to disappear.

Melao weddings are unique and interesting. The most interesting one is "Marrying Ten Sisters". One month before the bride arrives, girls of the same generation from the same village volunteer to form a group of ten groomsmen and go to the bride's house to be sisters. They stay with the bride day and night, helping her make new shoes, sew wedding dresses, and prepare dowry. On the wedding day, the ten sisters dressed exactly the same as the bride, wore the same "lover shoes" and "wedding dress", held the same "sister umbrella", had the same haircut, the same braid, and even behaved similarly. resemblance. If it weren't for relatives and friends, I really wouldn't know who was the bride and who was the best man. When they arrived at the groom's house, eleven girls came to the house together, and it was very lively.

In addition, on the day of the reception, many places still have the custom of setting up "song cards". When the groom and his party go to the bride's village to pick up the bride, they have to sing and answer questions before entering the bride's home through a "song card". Similarly, when the bride's bride-grooming party goes to the groom's village, they have to answer questions before they can enter the groom's home. Sometimes they sing from morning until night, and the crowd is packed with people watching the show. If you can't answer the question in the end, you can ask and answer it yourself, or the parents can sing a "reconciliation song" to announce the end of the "Bar Gate Song". During the long antiphonal singing, the host should provide delicious food and drink to the guests to ensure that they are energetic and full of emotions during the antiphonal singing.