Through questionnaires and interviews, this paper surveyed and studied the sense of happiness of 187 left-behind elderly people in Guizhou. The results show that in the context of the rural labor transfer, the sense of happiness of left-behind elderly people is generally low. There are many influencing factors and complex causes. Through analysis, it is found that transfer of family labor has a great impact on the sense of happiness of left-behind elderly people. Finally, it came up with some pertinent recommendations for raising the sense of happiness of left-behind elderly people.