The establishment of protected areas is a major tool to protect the ecosystem from the continuous loss of biodiversity. However, the very establishment of the protected area (PA) does not include the maintenance of status and/or reducing the loss of biodiversity. To achieve our overarching goal of preserving biological diversity, the sustainable use of marine resources and improve the quality of life of coastal communities we need to ensure effective management of protected areas. Evaluating the effectiveness of management in PAs helps to define what extent management protect values and achieve the purpose and goals. It helps us to discover management weaknesses and the pressures and threats PA face with. The Guide for quck evaluation of management in Mediterranean MPAs is used as a tool for assessing the management in Lastovo Archipelago Nature park, which was developed by the WWF Italy and IUCN Med Office within MedPAN North Project. Based on the results of the assessment Park management strenghts are: management decision making, PAs objectives, legal security and financial management. Management weaknesses highlighted in the study are: finances, staffing, management planning, research and monitoring, facilities for visitors and the lack of research related to key social issues. Specific guidelines for further management are proposed on this basis.