The purpose of this study is to explore drug abusers' "family need" and related factors from caregivers' subjective perceptions. This study is of cross-sectional design using an interview questionnaire. Subjects were recruited by convenient sampling from the caregivers of clients who were treated in one psychiatric center in Taipei for drug abuse. Fifty valid questionnaires were collected. The factors of "family need" were identified by factor analysis and named as "interaction", "economy", "negative side effect", "relapse", "self-esteem", and "peer". The data was analyzed by descriptive statistics, t-test, one way ANOVA, Pearson correlation and stepwise multiple regression. Three important findings were drawn from this study: 1. "Negative side effect of family need" was the most needed help for the drug abusers' family; 2. The negative side effect of family care need is related with employment status, family development stage, and the number of drug abusers; 3. the number of drug abusers in the family and family development stage were the significant factors for drug abusers' family care need. They explained 31.49% of the variance in family care need.