Currently, there is an increasing interest among researchers in the emigration from Poland not only of ethnic Poles, but also of minorities – Jews, Germans, Silesians, and Ukrainians. Despite considerable interest from researchers in the Roma minority in Poland in areas related to integration, education, social advancement, or exclusion, particularly in the context of European Union policy, until recently, little attention was paid to the topic of migration of Polish Roma. The text presented analyzes these migratory processes over several decades and points out changes occurring among Polish Roma as a result of migration to the West, mainly to Great Britain. I focus on the concept of migratory collectivism, which in the context of discussions around the structure and functioning has, in my opinion, good explanatory value in explaining why and how Roma migrated in a specific way to Western European countries since the early 1990s. As I indicate, migratory collectivism is a type of informal structure that emerged in the process of structuration and a type of response and agentive reaction of Roma to the mechanisms of exclusion and securitization of migration.