A subjective sense of uncertainty is a common theme in the experience of patients with epilepsy. Lack of control has also been implicated as an etiologic factor in the development of psychosocial problems in epilepsy. Cognitive-behavioral interventions emphasizing the mediating role of thoughts and self-control appear to be particularly relevant for patients with epilepsy because anxiety and depression are the most common problems. Despite its apparent importance, very little systematic research has been published on the effectiveness of psychological treatment of epilepsy. The purpose of the present study was to conduct a seminal outcome evaluation of psychological intervention for adult patients in Hong Kong. Using a waitlist control group, the treatment program focused particularly on cognitive restructuring and seizure control. Results indicated significant gains by the treatment group in overall quality of life and self-efficacy. In particular, marked improvements were noted for emotional well-being, seizure, and stress management. The clinical implications are discussed in the context of developing specific intervention programs and outcome measures specific to the various needs of adult patients with epilepsy.