The aticle exploring the professional relationship between school social work and school drug abuse prevention. And understanding the function of school social work in the school drug abuse prevention professional field. The first, knowing the characteristics and types about drug. Secondly, exploring the contents about school social work. The third, The forth, exploring the contents about school social work and school drug abuse prevention. The aticle suggestions have 2 dimensions: The first dimension, being five systems (including the analysis of the child and adolescent, family, social environment etc). The second dimension, being practical, having 4 approaches (including the school social work profession in the school drug abuse prevention etc) and 13 practical items.