Abstract: The study focus on the assessment of factors affecting marine assets maintenance management, with the case study of Tanzania shipping company (TASHICO), it also asses the operational state of the marine assets. In achieving objectives of the study, opinions of the maintenance personnel and other staff within Tashico were sampled through structured questionnaires, interview and observation, Maintenance officers and other staffs ranked policy and regulation implementation as first most significant factor among other factors responsible for poor marine assets maintenance management. Other factors found to be highly significant by the maintenance officers are; technological enhancement, financial and resource allocation, human resource development. The study recommended proactive measures to reduce maintenance cost and the occurrence of further destruction of the marine assets.