A reconfigurable radio processor comprises a task interface and an execution kernel. The processor can be applied to a platform comprising a main processor and on-chip bus, and uses a task-based interface between the main processor and the radio processor. The radio processor simplifies the designs for control system, instruction set and data path. The bus interface includes a task dispatcher. The execution kernel comprises a global control unit, at least one function unit, an operation network, and a data network. The radio processor meets the reconfigurable and scalable requirements. It allows system designers to realize many applications on an IC chip, as well as increases the add-on values for the product. It provides system designers with the possibility of replacing another main processor under a special consideration.