Bee raising has become an effective way to become rich in Chinese rural area. At present most beekeepers adopt single king bees mode to raise bees. In order to promote double king bees with higher benefit, the experiment was conducted to study on center temperature of bee colony,the results showed that the temperature of double king bees was 0.71℃ higher than that of single king bees, and it was more stable. The emergence time of workers of double king bees was 0.7 days earlier than that of single king bees, so bee -...