【Objective】 To find out the relationship between family, age and gender and psychological and behavioral development in 3~4 years old teenage. 【Methods】 152 children from Shiqi Area of Zhongshan city took part in the study. Parents filled in the Moss's Family Environment Scale and children mental health questionnaire(age 3~6). Spearman analysis and Mann-Whitney analysis were used to analyze the data. 【Results】 There was no significant difference between boys and girls except motion ability. The motion and cognition ability related with age positively, so as to the relationship of family achievement and social ability, and family intellectual-cultrual orientation and cognition ability. 【Conclusions】 The motion and cognition bility still develop fast as 3~4 years old toddler grow up. The motion ability development is different from boys and girls. The family intellectual-cultrual orientation better, the cognition ability better, so as to family achievement and social ability.