The article is devoted to the study of the topical problem of Palestinian-Israeli security cooperation. The author draws attention to the institution created in the framework of the Oslo process – the Joint Committee for Coordination and Cooperation. It was revealed that on its basis the first possibility of interaction between two parties within one body was tested. Other way of cooperation is negotiations between the security representatives of the Palestinian National Authority (PNA) and Israel “under the umbrella” of the United States in the 1990s. However, it did not bear impressive results. Tangible progress towards security engagement has come from personal contacts between senior officials on both sides that have been ingrained since the peace process. It is significant that they have not stopped since 1994. After the Al-Aqsa Intifada and the territorial and political division of the Palestinians, Ramallah and West Jerusalem have relied on strengthening their partnership in light of the common threat posed by Hamas.