PROBLEM TO BE SOLVED: To provide a hybrid type initiation power generator capable of starting a load without stalling an engine when there is rush current.SOLUTION: An outputtable current calculation part 21 performs map retrieval of power generator outputtable current according to an engine speed. A current shortage calculation part 23 calculates shortages of the outputtable current to load current. When the remaining battery amount is sufficient, a DC-DC converter control part 24 supplies the shortages of the current from a battery 4 to a DC part 52. When current supply is started from the battery 4, FETs Q6-Q8 of a rectification part 51 are turned off to stop output of a power generator 3. An engine rotation stability determination part 27 determines whether or not engine rotation is stable, when it is determined that the engine rotation is at a stable state, turns on the FETs Q6-Q8 of the rectification part 51 to restart output of the power generator 3, and stops or gradually decreases the power supply from the battery 4 to the DC part 52.