The invention belongs to the technical field of cell biology, and more specifically discloses a porcine islet cell frozen stock solution and a cryopreservation method. The porcine islet cell frozen stock solution is composed of a basic medium, porcine serum, DMSO, catalase, tocopherol, trehalose, and Z-VAD-FMK. The porcine islet cell frozen stock solution is capable of reducing apoptosis of porcine islet cells in freeze preservation process, improving resistance of porcine islet cells on severe environment, and increasing cell survival rate. According to the freeze preservation method, a programmable cooler is used for cooling, wherein when the temperature is higher than -25 DEG C, the cooling speed is controlled to be 1 DEG C/min, when the temperature is -40 DEG C or higher, and -25 DEG C or lower, the cooling speed is controlled to be 0.25 DEG C/min, and when the temperature is -80 DEG C or higher and is lower than -40 DEG C, the cooling speed is controlled to be 5 DEG C/min. The cryopreservation method is capable of reducing generation of ice crystals, and protecting porcine islet cells more conveniently.