In general, motherhood is subject to a positive social valuation. However, there are exceptions here – one of them is fulfilling the role of a mother of the child with disability. The aim of the conducted study was to answer the question: What similarities and differences exist in the role of a mother of a disabled child over the lifetime of women taking part in the research? A technique of an open, in-depth interview was used. Four mothers, who are raising a child with disability, participated in the study. The analysis of collected research material allows capturing positive changes taking place in the fulfilment of the role of a disabled child’s mother. Today the time of diagnosing the intellectual disability has significantly shortened. Younger women can count on the partners’ support; older ones – did not receive such help. Currently the availability of support has increased from non-governmental organisations; in the past there was a lack of foundations or associations. However, there are aspects of motherhood, which, despite the passing years, are permanent. These include fear and sadness of a mother originating from hearing the news about the child’s disability, difficulties encountered while performing the mother’s role, which arise from the nature of disability, and the sense of insufficient assistance from the state authorities.