Abstract: This study took seven lotteries in four countries both in China and abroad and tried to explore the degree and manifestations of the lottery players' conscious selection behavior by constructing two indices and other variables, with the methods of mathematical statistics and econometric regression. The results find that there do exit similarities internationally:all the lottery players tend to behave the conscious selection with the same degree, picking the lucky numbers in their culture and the triple or upward numbers, and show Gambler's Fallacy in short run. The Chinese lottery players, especially those for the pick 3 of sport lottery, are strongly keen to predict the winning numbers through past ones, showing the significant Gambler's Fallacy in both short and long run. The study suggests that lottery issuers should disseminate scientific knowledge on the probability to players so that the healthy betting entertainment culture will be established.