Introduction: Parkinson Disease (PD) although described initially by James Parkinson as a disease with motor disorder it has been demonstrated that the cognitive disorders in the form of disejecutive syndrome are frequent worsening with the evolution.

Objective: To characterize the Frontal Dysfunction (FD) in the patients with PD and to determine the factors related with frontal dysfunction in early stages.

Method: We studied 125 patients with diagnosis of idiopathic PD and Hoehn and Yahr Stages <2, to those which it was carried to them out survey with demographic, clinical and neuropsychological data studies included the Frontal Assessment Battery (FAB).

Results: The mean age was of 68.1±8.6, the onset age was of 62.6±10.5, the diestrums predominated and those which initiated with tremor. Of the 125 patients 71.4% presented FD, with an average of the FAB of 11.82±3.7. The age (R=-0.45; p<0.001) and onset age (R=-0.33; p=0.02) showed inversely proportional correlation.