This experiment was aimed to explore the effects of different sources of fiber and fat on reproductive performance and production performance of sows. Two-factor cross test design was adopted. A total of 120 sows with an average of 3 to 4 fetuses were divided into A, B, C and D groups. Each group consisted of 30 sows and 1 sow per replicate. Sows were fed early-pregnancy diets with bran+soybean husk, bran+beet meal, bran+alfalfa grain, beet meal+alfalfa grain combination to discuss the effects of different fiber sources on reproductive performance of pregnant sows; after pregnancy 107 days, pregnancy sows in each group were divided into L1, L2 and L3 groups, and 10 sows in each group. Sows were fed diets supplemented with 2.5% four-grade soybean oil, deep-sea fish oil and composite fatty powder, respectively, to explore the effects of different fat sources on production performance of lactating sows and piglets. The results showed as follows:1) there were no significant differences in number of litter size, number of litter size, health piglets number, average litter weight at birth and average body weight at birth among diets of early-pregnant sows supplemented with different fiber sources (P>0.05), but except for average body weight at birth, 8% bran+9% beet meal combination had the best effect, followed by 8%bran +9% beet meal combination. 2) There was no significant difference in milk fat percentage, milk protein content, lactose content and somatic cells counts of pregnant sows supplemented with different fat sources (P>0.05). 8% bran+9% sugar beet meal combination was superior to other combinations in milk fat percentage and milk protein content; somatic cell counts was the lowest in 8% bran+9% sugar beet meal combination, indicating that sows breast health status was better. 3) The effects of grade four soybean oil, deep sea fish oil and compound fat powder on back fat loss of lactating sows and average weaning weight of piglets were significant (P<0.05). 4) There was a significant interaction between early-pregnancy period diets and late-pregnancy period and lactation period diets on estrus interval of weaned sows (P<0.05). It is indicates that adding 8% bran+9% soybean skin combination is the optimal combination in early-pregnancy period diets; adding 2.5% deep-sea fish oil in late-pregnancy period and lactation period diets can improve weaning average body weight of piglets, while adding 2.5% compound fat powder has lower back fat lose, and has a significant interaction between early-pregnancy period diets and late-pregnancy period and lactation period diets on estrus interval of weaned sows, affecting the estrus time of sows after weaning.