Porcine oocytes were tested to see if freezing them with certain fluids would harm their viability. The results showed that the freezing fluids did not harm the oocytes. Vitrification with a specific method was found to be effective for preserving the oocytes, especially at the GV stage. The survival rate of GV stage oocytes was higher than M II stage oocytes after vitrification. However, the maturation and cleavage rates of vitrified GV stage oocytes were lower compared to fresh oocytes. Overall, the vitrification method used in the experiment was successful for preserving porcine oocytes at the GV stage.