This thesis explores the influence of mother's mental disorder, specifically schizophrenia, on child's attachment in adulthood. In the theoretic part, basic terms of attachment theory are introduced. I describe selected methods of attachment assessment and the associated attachment types or states of mind with respect to attachment. Further on, key information on schizophrenia is presented with an emphasis on impact of schizophrenia on mother - child relationship. The following empiric part explores the form and type of attachment of children with mothers who suffer from schizophrenia and its evolution in time. I was also interested in different strategies the children employ to cope with their mother's illness. Adult Attachment Interview (AAI) is the primary method used in the research, complemented by Experiences in Close Relationships Scale (ECR) and Thematic Apperception Test (TAT). The research results show that attachment of children with schizophrenic mothers tend to be anxious, specifically anxious-avoidant and disoriented-disorganized, more often than in the general population. Mother's illness thus has negative effects on child's attachment.