Abstract: The objective of this study was to examine whether growth performance, nutrient digestion and N-balance of growing minks were affected by different dietary protein levels from good protein feed resource. Eighty young male minks were allotted to five treatment groups (P36, P32, P28, P24 and P20) provided with diets containing approximately 36, 32, 28, 24 and 20% protein in Dry Matter (DM), respectively. From July to middle September the Body Weight (BW) was lower in group P20 than other groups (p<0.05). No significant difference of dietary protein on minks’ BW and average daily gain (ADG) between groups P36 and P32 (p>0.05). The performance and digestibility of DM, Crude Protein (CP) and Crude Fat (CF) were similar when the dietary protein level decreased from P36 to P32 (p>0.05). N intake, urinary N excretion and Blood Urinary Nitrogen (BUN) increased linearly with increasing dietary protein level (p<0.05). No significant difference was found of serum Total Protein (TP) among all groups (p>0.05). Considering of all the factors, when minks fed good protein resource the level of dietary protein should be about 32% of DM (29.78% of ME) of diet could meet the requirement of growing minks. Furthermore, the urinary N could decrease 6.06% in growing period of minks.