Abstract: To meet the needs of multi-core processor for interrupt handling, this paper designs and implements an interrupt controller for multi-core processor based on the Open PIC protocol. The structure of the interrupt controller is described by VHDL. As a slave of Advanced Peripheral Bus (APB), this interrupt controller can dispatch interrupts based on the interrupts' destination and priority, the interrupt handling of the processor cores is also considered. With the pipeline of interrupt arbitration, selection and dispatch, this interrupt controller can dispatch interrupts quickly and accurately.