Anxiety disorders are among the most prevalent childhood psychological disorders. In addition to causing acute distress to the child, parent and school staff, anxiety disorders may also have a significant impact on a child's educational and social development and persist chronically into adulthood. Recent work has begun to identify the school as an important setting for both the treatment and prevention of anxiety disorders in children. This paper begins with a description of several prevalent anxiety disorders and their presentation in a school setting. It then describes some of the more common assessment tools designed specifically for the assessment of anxiety in children, as well as some of the advantages and limitations different methods of assessment offer. Three school-based treatment programs are reviewed; Cool Kids, Friends and Skills for Social and Academic Success (SASS). Both Cool Kids and Friends are suitable for the treatment of anxiety disorders broadly; whereas the SASS has been included in the review as an example of a program designed specifically for social phobia. Several practical issues such as universal versus targeted delivery, parental involvement and implementation are also discussed.