To solve the incompatibility problem of cold and hot starting for an aeroengine

based on the aero-engine test bed

the ground start of aero-engine was analyzed and the reasons were found. The effects of starter power

starter disengagement speed and starting fuel supply logic on starting performance were studied. Some methods were proposed to improve aero-engine start ability and through the test

correctness of the methods was verified.Test results indicated that the starter power increased by 10% and start time reduced by 5%；the starter disengagement speed was increased by 2% and the starting time was shortened by 18%-25%; if some steps were taken to adjust and optimize the starting fuel supply logic

increased the fuel supply before the start

and reduced the amount of fuel supply in the later period

the starting performance of the engine could be effectively improved.