abstract this thesis includes five chapter : the first chapter assign to establish fuzzy mathematics requirement and introduction of liner programming in thesis. the second chapter we introduce a multilevel linear programming problems. the third chapter we proposed interactive fuzzy programming which consists of two phases , the study termination conditions of algorithm we show a satisfactory solution is achived. the fourth chapter we proposed interactive fuzzy programming for multilevel linear programming problems. in method , after determining the fuzzy goals of the decision maker at all levels , a satisfactory solution is derived efficiently by updating the satisfactory by updating the satisfactory degree of decision maker at the upper level with considerations of overall satisfactory balance among all levels. the fifth chapter conclusion we show application of thesis key words: multilevel linear programming, fuzzy programming , goal fuzzy, interactive programming, decision maker