Abstract: In this paper，the relative abundance of bird species was studied by using the patterns of log series distribution，log normal distribution，geometric series distribution，and broken stick model in the Jiangshi Nature Reserve Zone of Fujian Province．The results show that the relative abundance of bird species obeys the logarithmic series distribution and the log normal distribution that can be used to describe the bird species diversity well，and the geometric series distribution and the broken stick model can not be used to describe it；and the diagrammatization of“abundance／fre lency”reflects the effect of the logarithmic series distribution well，and the relative abundance of bird species does not obey the logarithmic series distribution in the hill and hilly county，and every community percent similarity(PS)is lower．