In a district polyclinic, psychodiagnostic study of subjects with borderline blood pressure (140/90--159/94 mm Hg) and patients with essential hypertension of the first stage was performed followed by psychotherapy of this group. Psychometric procedures: multisided personality study procedure (modified and restandardized variant of MMPI test and Cattell's 16-factorial personality test) were employed together with clinical examination. Various psychopathological manifestations were observed in 48.1% of the patients examined, which was reflected in the increase in the profile of multisided personality study procedure (MPSP) up to 70. Diastolic blood pressure in these persons rose as MPSP profile increased, and there was no enhancement in systolic blood pressure at that time. Psychotropic drug treatment in combination with psychotherapy of psychopathological symptoms and arterial hypertension proved efficient.