摘要：指出quasi-abel环是局部环与Abel环的真正推广,主要研究了quasi-abel环的一些性质:(i)若R为quasi-abel环且f∈E(R),则fRf为quasi-abel环;(ii)R为quasi-abel环当且仅当UTM2(R)或U3(R)或R[i,j,k]或SU3(R)为quasi-abel环;(iii)设R为quasi-abel环,a∈R为正则元,则a∈R#;(iv)若R为quasi-abel环,则R为直接有限环;(v)设R模J(R)可幂等提升,则R是quasi-abel环当且仅当R/J(R)是Abel环.