The paper analyzed the policy design of Erasmus+ Programme implemented by European Union and examined its characteristics, impacts and problems concerning youth global mobility. Four major findings are: 1. Global mobility contains the competence of international communication, adaptation, profession and implementation. Global consciousness and worldview based on local identity are also a dimension to consider. 2. Erasmus+ Programme integrates relating programmes and takes individual mobility as a key action. Together with two other key actions, the programme involves individual, organizational, cross organizational, and international levels which produce synergy for promoting youth global mobility. 3. The participants of Erasmus programmes report positive impacts on their international communication competence, cross cultural literacy, self-efficacy, worldview, career prospects, and employability. 4. The distribution of the background of Erasmus participants is not equal in many aspects, which signals the issue of global mobility justice.