The current study was undertaken to determine the effects of the feeding regimes on the reproductive performance and milk production of lactating sows, and the piglet weight gain. A total of 18 sows (Landrace × Yorkshir) in their 3 or 4 parities weighing avg 266kg was allotted individually to the furrowing stalls. Equal numbers of stalls were assigned to each of the three treatments. Experimental treatments consisted of 1) dry feeding(water was provided seperatedly after feeding; DRY), 2) semi-wet feeding(water was provided through nipples with feed, SEMI), and 3) wet feeding(feed was mixed with water together, WET). All sows were fed 1, 2, 3, and 4㎏/d, of corm, soybean meal-wheat bran based diet containing 16.5% CP and 0.82% lysine for first 4 days after furrowing, respectively. They were given the same diet ad libitum from 4 days after furrowing to weanning at 21 days lactation. The sows were weighed at 7 days before furrowing and at weaning. Backfat thickness(P2, mm) was ultrasonicatically measured at 7 days before furrowing and at weaning. Milk production of sows was estimated based on the assumption that 4㎏ of milk is required for 1㎏ weight gain of the piglet. All sows lost their weight during lactation with no difference among treatments. There was no significant treatment differences in backfat thickness at weaning with a range of 15.5 to 16.7 ㎜. Sows in WET consumed higher(P$lt;0.05) feed (5.8㎏/d) than those in DRY or SEMI, and showed(P$lt;0.05) more milk production(10.9 L/d) than other two treatments. The growth rate of piglets had a similar tendency as feed intake and milk production, with piglets from WET growing(233 g/d) faster numerically than those from DRY or SEMI. Return to estrus after weaning was not different among all treatments ranging from 2.7 to 3.4 d. These results showed that wet feeding regime increased the feed intake and milk production of the sows, and the growth rate of piglets, suggesting that the wet feeding for sows could be one of the potential feeding stratagies to benefit hog producers.