The invention relates to a method for realizing loading run codes in a DSP chip, which comprises: DSP run codes are split and compiled so as to obtain initial run codes and subsequent run codes; a microprocessor unit loads the initial run codes to the DSP chip first; the DSP chip executes the initial run codes and records corresponding initialized run results; and the microprocessor unit judges the initialized run results and handles errors according to the judgment result or loads the subsequent run codes to the DSP chip and executes subsequent processing flow. The method for realizing reloading of the run codes in the DSP chip skillfully realizes simple splitting of the run codes, solves the problem that the DSP run codes exceed a memory space through two-step loading, does not need to modify hardware design and codes, is simple and quick, has stable and reliable working performance and wide application scope, and lays a solid foundation for further large-scale popularization and application of the DPS chip control technology.