The present study focused on the function of autonomy for individuals from a collectivistic culture, thereby differentiating between two prevailing conceptualizations of autonomy—namely, autonomy as independence and autonomy as self-endorsed functioning. Participants were 573 Chinese adolescents from both urban and rural regions. Autonomy as independence (versus dependence) was operationalized as the degree of independent decision making within the family, whereas autonomy as self-endorsed (versus controlled) functioning was operationalized in terms of the degree of self-endorsement reflected in motives underlying both independent and dependent decision making. Basic psychological need satisfaction was examined as an explanatory mechanism (i.e., mediator) of the association between autonomy and well-being. Results showed that relatively more self-endorsed motives for both independent and dependent decision making yielded a unique positive relation with psychological well-being, with psychological need satisfaction playing an intervening role in these associations. In contrast, the degree of independent decision making as such did not yield any significant relations with well-being or need satisfaction. Moreover, individual differences in collectivistic cultural orientation did not moderate any of the above associations. Discussion focuses on the distinction between the two viewpoints of autonomy and their meaning for Chinese adolescents.