Abstract
This w ork ana l yses the response that the Spanish State as a Nation-State, is g i ving to int e g ration of the immi g rant as citizen. Contra r y to those w ho consider that residence has to be the access w a y to citizenship in the f ace of the crisis of the Nation-State and the ge o g raphical mobility that the global econ o m y imposes on people, here the political rel e v ance of nationality is defende d , as an und i vided ind i vidual share of belonging to the constituent p ow er in a harmonious relation with the fl e xi b le concept of residence. This research is d i vided into f i v e sections, in w hich nationality and the constituent p ow e r , the w a ys of access to Spanish nationali t y , the conflict of Nation or State, the characteristics of original nationality and f inal l y , the criteria used b y States to select the potential immi g rant. Th e critical ana l ysis of the Spanish l e gislation on nationality and citizenship t o gether with the theoretical debates, h a v e ena b led us to conclude with a proposal of l e g e fe r enda focussed on a radical refo r m of the concept of nationali t y