This study was carried out to determine the yield, yield components and oil ratio of some canola cultivars under semi-arid conditions. Trials were established in the trial field of Department of Field Crops, Faculty of Agriculture, Harran University in randomized complete blocks trial design as 3 replications. In the experiment, Licord, Es-Astrid, Embleme, Eldo, Elvis, EGC-102, Licrown, Bristol, Es-Nectas and Es-Hydromel winter cultivars were used. In the results of study; the highest seed yield was obtained from Elvis cultivar (2270.3 and 2081.7 kg ha-1 ) in two years of the experiment