Debugging method and debugging system for embedded system

The invention discloses a debugging method and a debugging system for an embedded system. The debugging method comprises the following steps: setting a debugging mode; mapping a download link space for a to-be-debugged program file to a random access storage instead of mapping to a quick flashing storage according to the debugging mode; receiving the to-be-debugged program file and storing the to-be-debugged program file in the random access storage; receiving a debugging instruction, running the debugging instruction and debugging the to-be-debugged program file. According to the debugging method and the debugging system for the embedded system provided by the invention, the speed of downloading the to-be-debugged program file during a debugging process is increased, and the service life of the embedded system is prolonged.