Two-color ball is a game of China Welfare Lottery. China welfare lottery "two-color ball" is a kind of "lottery-type" welfare lottery which is uniformly organized and distributed by China Welfare Lottery Distribution Management Center and sold nationwide. Since February 16, 2003, it has been sold on the national network.
The computer network system is used for distribution and sales, and TV lottery is held regularly. The provincial welfare lottery distribution center participating in the sales of "two-color ball" is responsible for the specific organization and management of the sales activities of "two-color ball" in this area under the direct leadership of Zhongfucai Center.
In 2003, after 1 years of market preparation, the two-color ball was officially put on sale on February 6, 2003. "More big prizes, more small prizes", double-zone number selection, the characteristics of a blue ball attracted people's attention. After the prize pool exceeded 100 million yuan, the introduction of the "inverted Sanqi" lottery added more charm to the two-color ball and promoted its development.
In 2005, on the basis of perfection, the two-color ball began to pay attention to the construction of integrity. With the development of "approaching the two-color ball" activity, the lottery credit construction has been pushed to a climax, and the lottery credit system has also become the focus of social attention.
On April 12 of that year, the first public delegation of "Approaching the Two-color Ball" composed of Shanxi public representatives walked into the scene of the two-color ball, and the "Approaching the Two-color Ball" activity was officially launched.
In 2006, the two-color ball put forward the concept of "lottery culture", and launched "Happy Holidays" on major festivals such as May 1 ST, November 1 ST, New Year's Day and Spring Festival to create lottery culture on holidays.