Objective of the research: Estimate cattle longevity traits using statistical-genetic methods, determine the most important effects influencing longevity traits; evaluate heritabilities and genetic correlations with production traits, milk quality and milk consumption traits, conformation and reproduction traits. Novelty of the research: Unifactoral and multifactoral analysis on variances determinate influence of genetic and non-genetic effects to longevity traits; Determined heritability parameters of longevity traits; Evaluated phenotypic and genetic relationships between longevity traits and other cattle selection traits; Created multivariation model for genetic evaluations of longevity traits.