This paper theoretically analyzes the quality changes of aquatic products by the
temperature environments according to the types of temperature fluctuations. First the
temperature fluctuation is divided into three types of temperature environments for
discussion during the transportation in the aquatic coldchain, by which the temperature
model is put forward foreachtype. And then quality evaluation models are established
respectively for the three temperature fluctuating environments. Finally,experiments are
given, which show the effectiveness of the models