Six children with cerebral palsy and severe speech impairment took part in a two-phase longitudinal study of development of social cognition. The children ranged in age from 5 to 7 years old at data collection time 1 and from nine to 11 years old at data collection time 2. Using a model of normal development of Theory of Mind (ToM) suggested by Gopnik and Slaughter (1991), the children were tested on a number of tasks requiring (ToM). The findings suggest that the children with speech impairment follow a normal pattern of development, but with a severe delay compared with children without disability. The results are discussed in relation to problems in early social and communicative experience for the group of children with cerebral palsy and severe speech impairment.