This report presents a survey of methods for the Distributed Parameter System Identification Problem. Fundamental concepts such as ‘ System Identification ’ and ‘ Distributed Parameter Systems ’ are briefly summarized in order to make precise what kind of problem will be considered here. The various identification methods are grouped into three disjoint classes, namely : ‘ Direct Method ’, ‘ Reduction to a Lumped Parameter System ’ and ‘ Reduction to an Algebraic Equation ’. Under this classification we give a general survey of the main approaches to the problem of identification in distributed systems