The subject of the study is the reproduction of labour resources of organisations. The problem was recognised in scientific literature, but has not been thoroughly studied yet.The purpose of our study was to elaborate the definition of the term "organisation’s labour resources" and consider the specifics of their reproduction.Methodology. In our study, we used the methods of comprehensive theoretical analysis, interpretation, and comparison of the analysed terms, and methods of statistical processing and the graphical interpretation of data. The basis of the information for the study were studies on the theoretical and practical aspects of the use of labour resources and labour force, the statistical data regarding their number and structure, methodological materials, and the latest research into the problem.Results. The article suggests a definition of the term "organisation’s labour resources" as a total of the owners of production means and hired workers who have certain legal relations with the organisation, pursue their own interests and use their professional skills to perform the labour activities required by the organisation within the framework of the existing motivation system. The article considers the existing types of reproduction of labour resources corresponding to the stages of the life cycle of organisations and sources formation of labour resources. The actual and potential components of labour resources were identified. The article also explains the effect of motivation on the effectiveness of the use of labour resources by organisations.