Abstract: Spatial distribution patterns of oriental fruit fly, Bactrocera (Bactrocera) dorsalis (Hendel), male adults in two species of fruit were analyzed by some distribution parameters. The results showed that the male adults trapped by attractor in orchards of star fruit and guava distributed in groups in space and the individuals interfered each other. The spatial distribution pattern affected by the density of the male was randomly at high density and most randomly, partly aggregative at low density.