The embodiment of the invention discloses a memory allocation method and node and relates to the field of computers. The method can avoid the problem that due to the fact that an application program high in access and memory sensitivity is allocated to a remote memory, increase of access and memory delay is caused, and therefore the performance of a system can be improved. According to the specific scheme, the first node inquires access and memory feature list items of the application program in a preset access and memory feature list according to the identification of an application program to be executed, wherein the memory feature list items comprise access and memory dwell time of the application program; if the access and memory feature list comprises the access and memory feature list items of the application program, the first node allocates a local memory of the first node and/or a remote memory of the first node to the application program according to the access and memory feature list items of the application program and the memory allocation strategy. The memory allocation method and node are used in the application program executing process of a node operating system.