Abstract: Geographical position which is at the equator, make Indonesia as a tropical country. Topography of the islands are diverse, consisting of lakes, mountains and one that has the longest coastline. This led Indonesia has a variety of beautiful attractions and the main attraction of tourists. Pulau Weh (or We) is a small volcanic island located in the western island of Sumatra. Infrastructure is a basic instruments to support the tourism aspect, where buildings and service institutions that existence is essential for the proper management in order to meet the needs of the economy and society. By using the method of decision-making that is, Location Quotient (LQ) in order to determine the potential tourist area, and then specify the infrastructure priorities that support the area with Analytic Network Process (ANP). From the results, Teupin Layeu and Gapang and Rubiah Island has the highest priority to the development of infrastructure inn / accommodation. Then followed with parking in Teupin Layeu infrastructure and access road to Km0. The results of this study have been partially recommended and in the realization phase, such as access roads to Km0 park in Km0 and also a parking space in Teupin LayeuKeywords : Infrastructure, Tourism, Priority, Sabang, Weh, AHP, LQAbstrak: Posisi geografisnya yang berada pada garis khatulistiwa, menjadikan Indonesia sebagai negara tropis. Topografi pulau-pulau yang beragam, terdiri dari danau, pegunungan dan salah satu yang memiliki garis pantai terpanjang. Ini menyebabkan Indonesia memiliki berbagai objek wisata yang indah dan menjadi daya tarik dari wisatawan mancanegara. Pulau Weh (atau We) adalah pulau vulkanik kecil yang terletak di barat Pulau Sumatra. Infrastruktur merupakan suatu perangkat dasar guna mendukung aspek pariwisata tersebut, dimana bangunan dan institusi pelayanan yang keberadaannya sangat penting untuk pengelolaan yang tepat guna memenuhi kebutuhan ekonomi dan masyarakat. Dengan menggunakan metode pengambilan keputusan yaitu, Location Quotient (LQ) ...