Background: Scientific knowledge on the quality of caregiving/maternal sensitivity among mothers with mild intellectual disabilities (ID) is limited and subject to many methodological shortcomings, but seems to suggest that these mothers are less sensitive than mothers without intellectual disabilities. Methods: In this matched-comparison study (N = 48), the present authors observed maternal sensitivity for 20 min in four different laboratory play situations. The study also included semi-structured interviews to assess maternal experiences of maltreatment and child attachment. Results: The present authors found significantly lower sensitivity among mothers with intellectual disabilities than among a comparison group of mothers without intellectual disabilities. Among mothers with intellectual disabilities, low sensitivity was related to maternal experiences of maltreatment and predictive of disorganized child attachment. In the comparison group, high maternal sensitivity was related to partner presence and social support, and predictive of child intelligence. Conclusions: The present authors highlight the importance of attending to intellectual disabilities mothers' history of "receiving" care to understand their capacity for "giving" adequate care.