Abstract: Prospective memory refers to the memory required to carry out planed actions at the appropriate time. It has become one of the focuses in memory study. This article reviews the cerebral mechanism of prospective memory from two aspects: clinic neuropsychology and cognitive neuroscience. The results show that the Brodmann’s（BAs）8 region was related to the prospective component of the prospective memory, the work of the thalamencephalon was to perform the intention.

Key words: prospective memory, frontal lobe, thalamencephalon