Cerebral Palsy (CP) is a debilitating neurological disorder that reduces motor function for children with CP. This paper presents the latest trends in the development of the arm exoskeleton for children afflicted by CP. Furthermore, it discusses the prospects for achieving an optimal outcome in rehabilitation and assistance. Nine upper limb exoskeletons, which targeted CP-afflicted children and were developed in recent years, are presented. Three of these exoskeletons are most commonly used in rehabilitation, and the other six are used for assistive purposes. Henceforth, it discusses when CP-afflicted children can make good use of this rehabilitation or assistance. In conclusion, this research should focus on a scalable upper limb exoskeleton that would benefit the majority of children afflicted by CP.