Objective The implementation of early rehabilitation programs based on evidence to improve the movement abilities of preterm infants is of particular importance. The evidence about rehabilitation interventions in improving the motor development of preterm infants is diverse and scattered and there is heterogeneity in the type, dose and time of therapeutic interventions. Therefore, the purpose of this review study is to identify the types of rehabilitation interventions (occupational therapy and physiotherapy) in improving the motor skills of infants hospitalized in the intensive care unit. Materials & Methods This is a scoping review study. Research studies and indexed in scientific databases including were available in PubMed/Web of Science/Scopus or retrieved by Google Scholar search engine were searched and reviewed. Inclusion criteria included the report of studies in English and Persian papers published from 2000 to 2023 that were mainly focused and the main subject of early rehabilitation intervention studies (occupational therapy and physiotherapy) on the development of neuromotor skills of preterm infants in the neonatal intensive care unit. After selecting the keywords and organized search, the found articles were matched with the entry criteria and finally considered studies were selected. Results Among the reviewed studies, 15 studies met the inclusion criteria. Among the available studies, 7 studies related to multi-modal interventions and 2 studies related to multi-sensory intervention. 2 studies related to neuro-developmental interventions. 2 studies related to interventions implemented by parents –administered. 2 studies related to interventions supporting play exploration and early developmental intervention. Conclusion Based on the findings of this research and the meetings held with experts in this field, we were able to organize early rehabilitation interventions for motor skills of preterm infants in 4 groups: 1) multimodal and multisensory interventions 2) neurodevelopmental interventions 3) parents-administered interventions 4) supporting play exploration and early developmental intervention to categorize. In this way, all types of therapeutic interventions in improving motor skills of infants were identified. Most of the studies included interventions that were performed in a short period of time and reported short-term effects on motor improvement. Only the supportive play exploration intervention continued after discharge and bridged the gap of early NICU-to-home interventions and reported improved motor development in the short-and long-term (6, 12 months).