Memory access abnormity detecting method and memory access abnormity detecting device

The invention discloses a memory access abnormity detecting method and a memory access abnormity detecting device. The memory access abnormity detecting method comprises the following steps of checking source codes and analyzing the morphology, the grammar and the semanteme of the source codes to generate a control flow diagram, a data dependence diagram, a first list file and a second list file; establishing a global function invocation diagram of the source codes according to the control flow diagram; performing matching detection on dynamic memory allocation of the source codes according to the global function invocation diagram, the second list file and the data dependence diagram; and establishing a virtual executing platform; and extracting an executing path according to the first list file, the control flow diagram and the data dependence diagram so as to detect memory leakage caused by dynamic memory allocation and memory access violation during running of a program. Memory access abnormity in the source codes can be sufficiently dug by analyzing the first list file, the second list file, the control flow diagram, the data dependence diagram and the global function invocation diagram, establishing the virtual executing platform and extracting the executing path, and the memory access abnormity can be detected efficiently.