91.25%。A new method of utilizing microwave to modify alcohol leached rapeseed protein concentrate was studied. The influence factors on the NSI were analyzed， such as RPC concentration，microwave power，modification time and pH value. The orthogonal test results showed that the optimum modification parameters were as follows: RPC concentration 5%，microwave power 300W，modification time 1min and pH value 10. Under the above-mentioned modification parameters，the modified alcohol leached rapeseed protein concentrate with NSI of 73.38% and foaming stability of 91.25% were obtained.