Beach tourism is one of the tourism models that most partners realize to manage to its sustainability. Integration of thoughts for various sectors was also needed for a walk to success. This research, thus, sought for ways to investigate for proper beach tourism management model with certain component. Testing will be implemented in area along the gulf of Thailand which is known by the name "The Royal Coast". The mixed-methods design was employed for the study: focus group (n=88), policy meeting (n=29) and questionnaire (n=800). Both host whose stakeholders in public and privates business in the beach area and communities and guests or tourists were asked and discussed. The results from the confirmatory factor analysis (CFA) indicated that six components were the significant factors for sustainable beach management, yielding Chi-square =10.870 Chi-square/df = 1.812, df = 6, p = 0.092, GFI = 0.996, CFI = 0.993, RMR = 0.008, RMSEA = 0.032. The sustainable beach tourism included six components of management on marketing and promotion management, tourist attraction management, participation management, environmental, cultural and education management, process, plan and policy management and personnel management respectively. All six components was assigned and implemented for testing in sustaining beach tourism management on the Royal Coast.