The study evaluated the relationship between maternal anxiety, depression and parenting stress, and maternal mind-mindedness, styles of interaction, and mother-infant emotion regulation. At infant age 3 months, EPDS, STAI, and PSI-SF were administered to 73 mothers to respectively assess depression, anxiety, and parenting stress; mother-infant interaction was coded with the mind-mindedness coding system, the CARE-Index and the Infant Caregiver Engagement Phases (ICEP). Results showed that maternal anxiety had a positive correlation with non-attuned mind-related comments, with mother's controlling style, and with infant negative and mother negative emotional states. Maternal depression had a positive correlation with mother's controlling style and with mother-infant dyadic negative emotion regulation. Parenting stress was associated with mother-infant emotion mismatches. To sum up, anxiety was the maternal mental health risk condition that had the greatest effect on the considered dimensions of parenting. Mind-mindedness was shown to be related to mother-infant emotion regulation, but not to sensitive style.