The literature on the use of cognitively based anger control packages of treatment for people with learning disabilities is reviewed. It is found that the experimental evidence for the effectiveness of such treatment is weak. There is, however, good evidence that two of the components of the package, relaxation and self-monitoring, can be effective in their own right, with relaxation being found to reduce anger and self-monitoring to reduce other challenging behaviours. The use of cognitive procedures with people who have learning disabilities is discussed.