In this paper，a kind of flowchart is given for audio—visual analysis to 4do par-allel programs．the flowchart can not only give the audio—visual description for the com munications among tasks，but also find all deadlocks and help people delete deadlocks．As a static analysis methord for parallel programs，flowchart is better than Petri nets in the convenience of finding deadlocks，helping to delete deadlocks，practical feasibility in use and the description for the ideas of parallel algorithms．