Background: The family-centred approach is fundamental in the therapeutic process of children with cerebral palsy (CP), and the increased competence of parents about therapeutic devices, especially orthoses, can facilitate its implementation, thus intensifying the benefits that this device provides. The aim of this study was to understand the perception of mothers of children with CP in relation to their children's anklefoot orthosis.Methods: This is a qualitative study using thematic content analysis technique. Data were collected using semi-structured interviews from 24 mothers of children with Levels IV and V of CP according to the Gross Motor Function Classification System (GMFCS), who were attended at a philanthropic rehabilitation centre.Results: Three categories were identified from analyzing the interviews: benefits of the orthosis, the orthosis in the child's daily life and 'What if it were like this?' Conclusions: According to the mothers' perceptions, the ankle-foot orthosis improved their child's mobility. The orthoses are used in different contexts in the child's daily life, and the mothers pointed out suggestions regarding personalizing the orthosis with different colors and patterns, increasing comfort and facilitating the way in which the device is placed. K E Y W O R D S family, neurological disorder, orthotic devices 1 | INTRODUCTION Children with cerebral palsy (CP) have musculoskeletal impairments, which are often associated with comorbidities such as cognitive disorders, which directly interfere in acquiring essential motor skills to perform daily activities and participating in the environment in which