Between 1956 and the seventies, the Government of the Federal Republic of Germany granted substantial amounts to Franco’s Spain within the framework of the German official programmes of technical and financial assistance for developing countries. This financial and technical support allowed the execution of public works in Spain such as irrigation infrastructures, the reorganization of iron and steel industries and the development of agronomic research, among others. All of these works were carried out within the framework of the Spanish development planning of the sixties and the seventies. This study analyses the reasons for the FRG to grant this kind of aid to Spain and describes the programmes which benefited from German support as well as the amount of the granted assistance. Basing in the analysis of official documents both from the FRG and Spain, it is shown that Spain’s status as a developing country was very early under discussion, and that the debate about maintaining or denying this status to Spain was influenced by conflicting perceptions and interests in both countries.