Maritime security is an important issue in the shipping industry. The international maritime organization (IMO) developed a Code of International Ship and Port Facility Security (ISPS Code) to enhance maritime security against piracy, terrorism, and any other illegal actions. Questionnaires are used to elicit Asian seafarers, perceptions of maritime security in the container shipping context. Exploratory factor analysis and confirmatory factor analysis techniques are applied to analyze the data obtained there from in order to understand the effect of maritime security implementation onboard ship. Four primary dimensions of maritime security implementation were identified, namely: security knowledge and capability, security manpower, security training, and security equipment. Results revealed that respondents from Philippines had high perceptions on security knowledge and capability, security manpower, and security equipment dimensions, whereas respondents from India and Myanmar had high perceptions on security training dimension. Theoretical and practical implications from the research findings in maritime security management are discussed.