The invention discloses a reconfigurable computing array and a construction method. The reconfigurable computing array comprises a preset number of single-cores and interconnection modules, wherein any single-core comprises a reconfigurable computing module, a reconfigurable storage module, a reconfigurable control logic module and configuration modules; the reconfigurable computing module, the reconfigurable storage module and the reconfigurable control logic module are constructed by referring to a hardware structure of a foundation count nuclear set contained in a certain application set; the preset number of single-cores can support all foundation count nucleus contained in the application set; and the interconnection module is realized by referring to each application in the application set on the basis of the hardware of the foundation count nuclear set for interconnecting the preset number of single-cores. By using the reconfigurable computing array disclosed by the embodiment of the invention, the aim of directly mapping the hardware structure of an application algorithm is fulfilled, and the processing efficiency of the application is improved. Moreover, because of the reconfigurability of the array, the hardware structure can respond to each application flexibly, and the flexibility of the array is improved.