The biodegradable poly(butylene succinate) (PBS)/poly(ε-caprolactone) (PCL) microcapsules containing fragrant oil were prepared by emulsion solvent evaporation method. The prepared microcapsules were investigated in the manufacturing conditions and release behaviors. The morphology and particle size of the microcapsules were observed by image analyzer and scanning electron microscope (SEM), respectively. The porous and spherical microcapsules were formed with gelatin given in a surfactant. Also, the thermal properties and release behaviors of the microcapsules with PCL contents were determined by using the differential scanning calorimetry (DSC) and UV/vis. spectrophotometer, respectively. From the DSC results, the PBS/PCL microcapsules showed the two peaks at 56 ℃ and 112 ℃ meaning the melting points of PCL and PBS, respectively. This proved that PBS and PCL were mixed so that PBS/PCL microcapsules were composed of two wall-forming materials. The release behaviors were decreased with increasing the PCL content. It was noted that the coated PCL on the PBS microcapsule retarded the release rate of fragrant oil from microcapsules.