Through in-depth interviews and questionnaires，the research team found that the characteristics of the lack of family education for rural left-behind children in Wuling Mountain Area in the era of mobile phone popularity were as follows：deficient face-to-face communication with their parents，mobile phones have become the main communication channel between left-behind children and their parents；deficient their parents’ company，mobile phones have become the main psychological comfort for left-behind children；deficient communication with the surrogate guardian，making friends and entertainment become the main purpose of left-behind children to use mobile phones；deficient the richness of tutor content，mobile phones become the most important supplementary channel of tutor content；deficient the time and space for tutoring of parents，they rely heavily on school education. Research data analysis showed：parents of left-behind children have little awareness of tutoring through mobile phones，and the parenting style is relatively single；parents’ tutoring content is monotonous，the parents’ initiative and left-behind children’s willingness to accept the tutor are both weak；schools and teachers are absent from home-tutoring. Therefore，in the era of mobile phone popularization，we should innovate the parenting mode of left-behind children in rural areas. Parents of left-behind children should take the initiative to learn the new content of tutor and master the new skills of using mobile phone for tutor. The government and social forces should systematically train parents’ parenting ability，attach importance to the basic media literacy education of left-behind children，and improve the position of schools and teachers in the tutoring of left-behind children.