The article presents the results of the Identity Resilience Index (IRI) technique adaptation in Russian-speaking sample (N = 175) in 2023. IRI measures the degree of identity resilience as a cumulative assessment of the respondent’s self-esteem, self-efficacy, continuity and uniqueness. Factor analysis made it possible to clarify the internal IRI structure: 4 scales were identified. Cronbach’s alpha coefficients for all scales range from 0,915 to 0,883, which indicates good internal consistency. Internal and external validation checks were carried out. IRI scales demonstrated many positive and negative correlations with the scales of other techniques. The Russian version of the Identity Resilience Index can become a reliable and valid tool for determining the level of person’s identity resilience.