A study was conducted to evaluate the effects of dietary supplementation of fermented soybean meal (FSBM) with coconut oil on growth performance in weaning pigs. A total of 80 crossbred weanling pigs [42 days old] with average body weight (BW) of 6.52 ± 0.59 kg were used in a 6-week experiment trial. Pigs were blocked based on BW and sex and randomly allotted to 1 of 4 dietary treatments [5 pigs per pen (2 barrows and 3 gilts); 4 pens per treatment]. Treatments consisted of pigs fed: 1) CON, a basal diet with 2% coconut powder; 2) basal diet with a 3% cocosoya 3) basal diet with a 6% cocosoya 4) basal diet with 9% cocosoya. The supplementation of increasing levels of cocosoya to diet weaning pigs linearly increased (P = 0.05) the BW at week 1, 3 and 6 compared with the pigs fed the control diet. The average daily gain (ADG) and gain: feed (G:F) ratio was linearly increased  (P < 0.05) during day 1to7. The ADG, average daily feed intake (ADFI) and G: F was linearly increased (P < 0.05) during day 8 to 21 were observed with the increase in the supplemental of cocosoya. The ADG and ADFI linearly increased (P < 0.05) during day 22 to 42. The overall ADG, ADFI and G:F  was linearly increased (P < 0.05)  in pigs fed increasing levels of cocosoya during overall experimental period. The creatinine was linearly increased (P < 0.05) and blood urea nitrogen (BUN) concentration were trend to increase (P < 0.05)  in pigs fed increasing levels of cocosoya during day 22.