Textile wastewater mixed with various contaminants at different ranges. Therefore,rnenvironmental legislation commonly obligates textile factories to treat these effluents beforerndischarge into the water bodies. The effluent treatment plant is designed to remove certainrnpollutants found in the effluent of textile industry. Therefore this study focuses on the Evaluationrnof phsico-chemical characteristics of textile industries effluent discharge on environment inrnOromia region, Ethiopia. Samples of raw effluent discharged were collected from the outlet afterrndifferent levels of treatment plants (primary, secondary, and tertiary) and analyzed by standardrnlaboratory methods. The laboratory data were statistically analyzed using simple descriptivernstatistics and one-way ANOVA. The analyzed data was presented by using tables and graphsrncompared with World Bank and Ethiopian guidelines standard for textile wastewater. Thernphysicochemical characteristics of the textile wastewater fluctuated depending on the level of therntextile treatment plant. The one way ANOVA taste result showed that pH, COD, TSS, S-2rn, TP, TN,rnTNH3rn-rnand Phenols exhibited statically significant differences across sampled textile industriesrnwith different levels of environmental treatment plants (ETPs). However, the Post Hoc testsrnbased multiple comparisons revealed that statistically insignificant differences were observed inrnthe case of the concentration of heavy metals (Copper, Lead, and Chromium) in the textilernwastewater having different levels of ETP. The analysis revealed that most pollutants such asrnpH, chemical oxygen demand (COD), total suspended solids (TSS), Sulfide (S-2rn), totalrnphosphorus (TP), total nitrogen (TN), Total Ammonia (TNH3rn-rn), Phenols, Copper (Cu) andrnChromium (Cr) form the textile factories that passed the different ETP were found above thernpermissible limit of World Bank Environmental, Health and Safety Guideline of TextilernManufacturing (EHSGTM) and Ethiopian guidelines standard. Therefore, the textile industriesrnshould improve the performance of the wastewater treatment plants to minimize the possiblernpollution. In this regard, the industries should balance the inlet and outlet to the existing effluentrndesigned capacity level treatment, properly dose treatment chemicals and understand basicrnconcepts of ETP operational process and better to using from preliminary treatment technologyrnup to advanced treatment technology. In addition to this, it is better to recycle wastewater. Thernrelevant government bodies also need to do regular monitoring and enforcement ofrnenvironmental laws and regulations as per the national standard.