Abstract: A 28 d feeding trial was conducted to examine the effects of marine fish scale meal (0%, 3.5% and 7.0% respectively) in sow dietaries. Eighteen sows (Landrace×Taihu swine)were randomly allocated into three treatment groups with three replications and two sows in each treatment according to a completely block randomized design. The results showed as followed: ① The serum biochemical parameters of farrowing lactation sows in different groups had significant differences (P0.05) : that serum AKP activities and iron concentrations of lactation sows of Treatment Ⅰ on the 10 days after farrowing were significantly higher than those of Treatment Ⅱ and CK; The blood albumen and iron concentration of sows in Treatment Ⅰ on the 20 days after farrowing were significantly lower than those of Treatment Ⅱ and CK (P0.05). ②The daily feed intakes of sows in different treatments showed no significant differences (P0.05). ③There were no significant differences (P0.05) in feed efficiency of weaning piglets in different treatments. 3.5% to 7.0% of marine fish scale meal added to the lactation sows dietaries had no effect on the appetite.