Taiwan is an island surrounded by ocean, where its unique geographical location has placed Taiwan the role of the Asian maritime hub. Heavy traffic is around the surrounding water with thousands of ships passing through each day. The prosperous shipping industrial bring economic benefits, nevertheless, it also enhances the risk of marine pollution. Facing the potential marine environmental impact incurred by shipping, it is imperative to review the current inspection system and related policies designated to the prevention of ship pollution. Currently in Taiwan, Port State Control (PSC) is implemented by the harbor bureaus, who enforce the regulations articulated by PSC. The objectives of PSC are to protect human life and cargo safety at sea, and to prevent the pollution from ships. Due to the lack of dedicated units and personnel, there are no frequent ship inspections and thus less effective PSC operations. In addition, without any appropriate vessel to navigate off coast, the harbor bureaus cannot perform investigations on board for the ships sail around Taiwan waters. It is therefore possible that the ships discharge waste oil and sewage into the sea intentionally or negligently, and cause marine environmental pollution and impact marine ecology. The study has identified the inadequate capacity for maritime enforcement in Taiwan. To improve the current situations, it is necessary to refer to law enforcement experiences from developed countries. After careful review the related literatures, the study has also interviewed several domain experts and presented the results using the SWOT table. In addition, a multi-objective programming (MOP) model has been formulated to suggest the allocation strategies of inspection resources based on the objectives of cost and performance. Finally, the study has analyzed the historical events, enforcement capacities, equipment, laws, and policies, and has proposed the comprehensive suggestions to overcome the current problems and thus improve the supervision of oil pollution from ships. The goals of marine environmental protection and sustainable marine ecology are therefore achievable.