This study was performed to investigate the effects of parity and season on the embryo production in superovulated Hanwoo cows. Superovulation was performed from 1 to 8 times by repeated superovulation treatment of Hanwoo cows (n = 22). Irrespective of estrous cycle, donor cows were received a CIDR, progesterone (50 mg) and estradiol benzoate (2.5 mg). After 4.5 days, the donor cows were superovulated with total 28AU FSH (Antorin R-10) administrated twice daily in a decreasing dose for 4 days. On $6^{th}$ and $7^{th}$ of FSH injection, 2.5 mg and 15 mg $PGF_2{alpha}$ were injected i.m, respectively. CIDR was removed at the $7^{th}$ FSH injection. The donor cows received $200{mu}g$GnRH at 48 hrs after $1^{st}$ $PGF_2{alpha}$ injection. The donor cows were artificially inseminated three times after estrous detection at 12 hr intervals and embryos were recovered 7 days after estrous detection. The mean number of total ova, transferrable embryos, degenerated embryos and unfertilized oocytes were $11.6{pm}7.9$, $5.5{pm}4.4$, $3.0{pm}3.3$ and $2.6{pm}4.1$ per donor cows, respectively. A higher number of total ova were recovered in parity 3~5 ($14.3{pm}1.3$) than 1~2 ($8.9{pm}1.9$, P<0.05). The number of recovered normal embryos is significantly higher in parity 3~5 ($7.3{pm}0.8$) than that of over 6 ($3.7{pm}1.5$). Significantly higher number of total ova and normal embryos were recovered in summer ($16.4{pm}2.3$, $8.1{pm}1.4$) than in autumn ($10.1{pm}1.8$, $4.5{pm}1.1$) and winter ($6.3{pm}1.8$, $3.3{pm}1.1$), respectively (P<0.05). Transferable embryos were significantly higher in summer ($7.6{pm}1.3$) than in winter ($3.0{pm}1.0$, P< 0.05). The results were showed that parity and season affecting on the production of embryos in superovulated Hanwoo.