This trial was conducted to study the effects of solid state fermented rapeseed meal to replace part of soybean meal on growth performance of broilers and the suitable percentage used in the diet for broilers. One hundred and twelve 1-day-old Arbor Acre broilers with an average body weight of (37.50±0.33) g were randomly divided into 4 treatments. Each treatment had 4 replicates and each replicate had 7 broilers. The broilers were fed corn-soybean basal diets in which part of soybean meal were replaced by 0, 5%, 10% and 15% solid-state fermented rapeseed meal, respectively. The results indicated that solid-state fermented rapeseed meal not more than 10% in diet did not affect the average daily gain (ADG) of broilers (P>0.05), but 15% of solid-state fermented rapeseed meal significantly reduced ADG (P<0.01) in starter (d 1～21) and grower periods (d 22～42). Fermented rapeseed meal not more than 10% in diet did not affect the average daily feed intake of broilers in each period and the feed conversion ratio (FCR) in grower and overall periods (P>0.05). However, 10% solid-state fermented rapeseed meal increased the FCR in starter period (P<0.05) and 15% solid-state fermented rapeseed meal increased FCR in grower and overall periods (P<0.05). Furthermore, the indices of liver and hypothyroid were not affected when the solid-state fermented rapeseed meal was not more than 15% (P>0.05). It was concluded that the solid-state fermented rapeseed meal could be used to replace not more than 10% soybean meal in the diet for broilers.