Malignant malformations morbidity in population of Tomskaya oblast in 1980-2003 is examined. The structure of various localizations of oncological pathology depending on age-specific and gender aspects is presented. Nature of cancer diseases in compliance with genetic, ontogenetic, accumulative and ecologic patterns is discussed. Mean and peak life span, rate of dying out of oncological patients with various localizations of cancer process is established. It is demonstrated that in Tomskaya oblast over studied period on average mean life span came to 5.42 years and peak life span came to 10.8 +/- 0.2 years with annual rate of dying out of patients 9.249%. Study results consider as foundation for in-depth investigation of the role of risk factors in development of oncological pathology, life quality and life span of cancer patients, enhancement of management of medical preventive and curative diagnostic care to patients of this particular profile.