The present study focuses on mother-daughter relationships, and the effects of daughters’ intimacy with their mothers on daughters’ psychological independence were elucidated. Female university students ( n ＝509) completed a questionnaire. In Study 1, the results were used to develop a mother-daughter intimacy scale; the reliability and validity of this scale were verified. The scale has three subscales: “solicitude for one’s mother, ” which referred to the care daughters feel for their mothers; “an absolute sense of security from one’s mother, ” a form of dependent intimacy that referred to the belief among daughters that their mothers accept their affective needs unconditionally; and “being tied to one’s mother’s values, ” a form of dependent intimacy that referred to the extent to which daughters are tied to the values of their mothers. Study 2 examined the effects of these three types of intimacy on daughters’ psychological independence, which referred to the reliability of daughters’ relationships with their mothers, and psychological individuation from one’s mother. Among daughters, these three types of intimacy exerted different effects on psychological independence; an intimacy-independence model for mother-daughter relationships was proposed.