The effects of pulsed electric field(PEF) and pH as well as thermal treatment on the stability of gardenia yellow pigment were investigated in this paper.Results indicated that gardenia yellow pigment exhibited high resistance to intense PEF and thermal treatment.When the applied PEF treatment time was 64 ms,the reservation ratio of gardenia yellow pigment was 97.1%.This was slightly higher by 4.9% than the thermal treatment at 90℃ for 30 min.It was investigated that the gardenia yellow pigment was very sensitive in both strong acid and strong alkaline environments.