The Executive Function is a set of cognitive processes that are developed from the earliest ages. Recent studies in children with disruptive behaviour disorders suggest the presence of effects on the executive functioning. The aim of this study is to know the association among symptoms of Attention Deficit with Hyperactivity Disorder, Oppositional Defiant Disorder, and Conduct Disorder, and Executive Function in children from 3 to 6 years old. Method: A descriptive cross-sectional study was conducted. An assessment was performed on a sample of 444 subjects from Spain; it was made through an inventory for parents and teachers to estimate the capacity of Executive Function. Results: a relation between the symptoms of Attention Deficit with Hyperactivity Disorder, Oppositional Defiant Disorder, Conduct Disorder, and the Executive Function deficit was found. The presence of symptoms of Attention Deficit with Hyperactivity Disorder inattentive type is associated with deficiencies in all areas of Executive Function, which does not occur with other symptoms. Conclusion: It is important to know the specific characteristics of each symptomatology by taking into account their executive functioning, in order to achieve accurate diagnoses in the clinical setting, as well as appropriate therapy according to the deficiencies presented by children.