The invention discloses a culture solution and method for improving the in-vitro maturation quality of porcine oocytes. The culture solution is prepared from the following components: an M199 culturesolution, 10 ng/mL of EGF, 10 [mu]M of asiatic acid, 0.6 mM of L-cysteine, 0.91 mM of sodium pyruvate, 10% follicular fluid, 10 IU/mL of LH, 10 IU/mL of FSH and 100 IU/mL of penicillin. According to the culture solution and method, the asiatic acid is added into the porcine oocyte in-vitro maturation culture solution for the first time, the maturation rate of the oocytes can be effectively increased, the quality of the oocytes can be effectively improved, the development rate of the oocytes can be effectively increased, the quality of the oocytes can be effectively improved, the developmentalrate of parthenogenetic embryos and in-vitro fertilized embryos can be increased, the embryo quality of the parthenogenetic embryos and the in-vitro fertilized embryos can be improved, and the problems of low efficiency and poor quality of in-vitro maturation and in-vitro culture at present are effectively solved.