Single phase of SrIrO₃ powders and ceramics were obtained by solid-state chemical reaction method and spark plasma sintering (SPS) technique, respectively. Phase evolutions, characteristics, morphology and resistivity of the samples were studied by using thermogravimetric analysis–differential scanning calorimetry (TG–DSC), X-ray diffractometry (XRD), field emission scanning electron microscopy (FESEM) and four-point probe method, respectively. The results showed that the reaction process to form SrIrO₃ phase occurred between SrCO₃ and IrO₂ directly during the heating process. By using optimum fabrication conditions established from the TG–DSC results, single phase of SrIrO₃ powders was synthesized at 800–1000 ℃. SrIrO₃ ceramics were sintered by SPS technique at 1000–1100 ℃ with a pressure of 30 MPa, showing a high relative density of 92%–96% and dense microstructure. The room-temperature resistivity of SrIrO₃ ceramics was about 2×10^-4 Ω•m. The present study can provide high-quality ceramic target for the preparation of SrIrO₃ films in traditional physical vapor deposition (PVD) method.