Resumen: Este articulo hace referencia al proceso de formacion de los partidos politicos, liberal y conservador, durante la segunda mitad del siglo XIX en Colombia. Destaca el ideario adoptado por cada una de las formaciones politicas y examina en que medida se acercaron los diferemntes sectores sociales y economicos a tales idearios. Al mismo tiempo, tiene en cuenta el papel destacado que jugo la Iglesia Catolica en el desenvolvimiento de los procesos economicos, politicos y sociales en la Colombia del siglo XIX. Palabras clave: Reformas, partidos politicos, liberal, conservador, desamortizacion federalismo, centralismo, guerras civiles, Iglesia Catolica, Concordato, Estado, gobierno. ********************************************************** Colombian political parties during the second half of the XIX century Abstract: This article refers to the transformation process of the iberal and Conservative political parties during the second half of the XIX century in Colombia. It emphasizes on the ideologies assumed by political parties and examines the relatiosnship between the social and economic sectors and these ideologies. Likewise, it takes into account the role played by the Catholic Church in the develpoment of economic, political, an social processes in Colombia during the XIX century. Key words: Reforms, political parties, liberal, conservative, centralism, federalism, debt payment, civil wars, Catholic Church State, goverment.