On February 16, 2003, after 1 years of preparation, China's welfare lottery two-color ball made its debut and quickly became popular in the provinces where it was jointly sold. Although it is a national joint sale, only 20 provinces jointly sold two-color balls at the beginning. After that, the two-color ball carried out a series of marketing work such as regulation adjustment, team expansion and brand building, and gained a firm foothold in the market in 2003.

The principle of two-color ball joint marketing is gradual and voluntary participation, which not only ensures the stable entry of two-color ball games into the market, but also ensures the stability of lottery markets in various provinces and cities. In addition, the adjustment of game rules makes the two-color ball closer to the market and lottery players, which plays an important role in stabilizing the market.

On August 14, 2003, the first prize of 7 notes in the 2003050 issue of two-color ball cleared the current prize pool. Subsequently, the lottery center started the adjustment fund in time and added 3 million yuan to the prize pool, which provided a guarantee for winning the 5 million grand prize. Later, the lottery joked that "thousands of people wear it, but the prize pool does not wear it."

Two months later, on 1 October 23rd, 2003, 10, the fund of the two-color ball prize pool broke through1100 million yuan for the first time. The relevant departments issued new policies in time and launched the "inverted Sanqi" bonus, which greatly improved the influence of the two-color ball. With the appearance of super prize pool, the sales of two-color ball also entered a stable period. Among the 29 provinces jointly sold that year, the two-color ball became the mainstream play in 25 provinces, and the title of "life-saving ball" came into being.