Abstract: This paper introduces a FORTRAN oriented Programming Environment FOPE whichsupports analyses and transformations to FORTRAN programs. Several functions of FOPE suchas static analysis, dynamic analysis,program transformations I DO-loop transformations and documentation generation are presented in this paper. one of the important characteristics of FOPEis visualization.This kind of tool includes program call graph, control flow graph and data dependence graph, with which the static structures of programs and dynamic execution states can bedisplayed. FOPE system is built on the UNIX operating system and X--Windows.