This study aims to evaluate, prospectively, the relationship of the active epilepsy length and the work, of the 379 out-patients from Hospital de Base, São José do Rio Preto. Epilepsy length was subdivided into 5 time rates and by age, into 3 age-groups. There was no relationship, not considering the age of patient among the epilepsy length and the work, but young patient (14 at 29 years old) and with recent epilepsy (length of 0 at 5 years) lost more work than the adult and elderly epileptic.