This research with aims to evaluate the performances of local manufacturing sugar cane harvesting machine in field as responses+ to crop conditions. Field conditions determined to have important influence on the performance of a mechanical harvesting were: The inter row spacing of sugar cane. The sugar cane furrow depth. The transverse ridges intervals. The sugar cane field established before planted and continues in the field for 5 years. The results of the field and crop conditions show that in the field conditions of inter row spacing ranged from 0.85 to 0.9 m. Furrow depths ranged from 12 to 21 cm and transverse ridges intervals ranged from 12 to 20cm. and the crop conditions of the average crop density was 10.85 mealable stalks/m2. For lodging condition the percent of erect crop was 66% in the case of newly planted crop reduced to 35% in case of the final Raton. Percent lodged was 26% in case of the newly planted crop increased to 37% in case of the final Raton. The percent of recumbent crop increased from 8% in the new crop to 28% in the final Raton. The average mealable stalk dimensions were 182.2cm for length 2.46cm diameter and 0.824 kg wight. Cane material mechanical properties, resulted that the average internodes of 500N for chair stress, 4258 N compression strength and 863.2 N for bending moment.