This paper looks at the dynamics affecting the external dimensions of the EU’s labour immigration policy. It assesses the role and functions of mobility partnerships as a mechanism for governing circular migration schemes that allow the temporary movement of individuals for employment purposes between EU member states and non-EU countries. The paper argues that given the actual origins, rationale, conditional nature and kinds of circular migration policies advocated by these partnerships, they should be considered ‘security’ partnerships for the participating EU member states and to a limited extent for the non-EU countries. At the same time, they could be regarded as ‘insecurity’ partnerships for the coherency and legitimacy of the EU’s labour immigration policy, as well as the liberty and security of the third-country workers.