The invention provides a hybrid power source energy management method of a fuel battery. The hybrid power source energy management method includes steps of: initializing; controlling output circuit of a direct current to direct current (DCDC) converting unit according to measured voltage of an energy-storage device and actual current output by the DCDC converting unit, responding to the energy requirements caused by changing of the loading state, and simultaneously ensuring the energy storage device to be in an optimum charging state; and transmitting current setting instructions to the DCDC converting unit. The hybrid power source energy management method does not adopt any stress optical coefficient (SOC) calculating mode, and the system does not depend on accuracy and reliability of a current sensor. Further, the hybrid power source energy management method is strong in compatibility, high in reliability, strong in practical applicability and stable in output voltage, the same system is suitable for more automobiles (forks) different in types and does not require parameter revise, problems caused by descending of the battery capacity can be previously revised by pre-arranged parameters, and long-time reliability of the system is ensured.