Abstract: Hardness was one of the most important texture characteristics of crisp grass carp. In order to optimize the measurement parameters to distinguish crisp grass carp from grass carp, the grass carp was taken as control to compare the hardness of crisp grass carp in this paper, and the factors including test probe, test speed and target value to dorsal muscle's hardness of crisp grass carp was analyzed using texture analyzer through single factor experiments. Result:test mode:TPA, test probe:TA41, 6mm cylinder stainless steel probe, test speed:30mm/min, target value:4mm, trigger value:auto, 5g, No. cycles:auto, 2times, hold time:auto, 0s. It was hoped that providing some references to comprehensive evaluation on crisp grass carp.