Este articulo constituye una aproximacion al fenomeno historico de la ciencia espanola durante el periodo de la ilustracion y el proceso de expansion de esta ciencia a los territorios coloniales americanos, asi como su incidencia, en esos territorios, en la construccion de un nuevo ideario educativo, cultural y social que desembocaria en la consecucion de los procesos independentistas de las naciones americanas. De este modo, los ideales ilustrados, disenados en la corte borbonica, no sintieron para los cometidos de regeneracion y modernizacion con que estaban concebidos, pero si sentaron las premisas educativas para que la ciencia criolla adquiriese conciencia de su identidad nacional y tratase de insertar su discurso periferico como una via alterna a la metropolitizacion colonial del conocimiento. ROUND TRIP THE ILUSTRATED SCIENCE AND ITS INFLUENCE IN THE AMERICAN COLONIAL EDUCATION This article establish an approximation to the historic phenamenon of the spanish science during the Illustration Period and the process of expansion of this science to the American Colonial territories, therefore as the ir incidence in those territories in the construction of a new educational, cultural and social ideology that would end in the attainment of the independencist process of the American nations. Therefore, the ilustrated ideals, designed in the bourbonic court, where useless for the efforts of regeneration and modernization with which they were conceived, but they placed the educational premises so that sciences would a acquierer conscience of its natural identity and would try to insert its peripheric discourse as an alternative way to metropolization of the colonial knowledge.