One of the major problems with mechanized sugar cane billet planting is inappropriate billet planting rate in present sugar cane planters. Resolving this problem is very important technically as well as economically. In addition to wasting a large amount of sugar, planting density will be increased and, therefore, new seedlings will not grow well. Consequently thinning operation becomes inevitable and production costs will increase. On the other hand planting sugar cane billets with low density decreases crop yield. To resolve these mentioned problems Namjoo (1387) developed a sugar cane billet planter. According to initial field evaluation of the developed sugar cane billet planter, feeding billets from an arranging unit to metering device had a problem and it was necessary to design, develop and evaluate a new billet feeding mechanism to feed billets to the metering device. Several works presented by various researchers were reviewed and finally roller conveyor was selected to be applied in this situation. The conveyor receives billet from the secondary hopper of the planter and starts delivering them after passing from an arranging screen. By using chain power transmission system between feeding system and metering device, precise timing between them can be achieved. Catia software was used for technical modeling and drawing of plans. The fabricated prototype was evaluated on a laboratory test rig. An electrical motor and reduction gearbox was used to supply required speed of the test rig conveying belt and feeding system. The speed of metering device and test rig belt was controlled by two inverters. The feeding system was evaluated based on filling coefficient of metering device’s cupboards, over-overlapping and under-overlapping as affected by planting speed (2.6, 3.0, 3.5 and 4.0 km/h), cane variety ( with and without debris) with four replications. A factorial experiment with a completely randomized design was used to examine the effect of speed of planting and cane variety on filling coefficient of metering device’s cupboards, over-overlapping and under-overlapping indexes. Data obtained from experiments were analyzed using SAS and MSATAT-C statistical softwares. Results indicated that planting speed had a significant effect on filling coefficient of metering device’s cupboards. Because of sugar cane billet positive feeding, by increasing planting speed from 2.6 to 3.0 and 3.0 to 3.5 km/h, no change was observed in the mean filling coefficient of metering device’s cupboards. But as planting speed increased from 3.5 to 4.0 Km/h, the filling coefficient of cupboards decreased by 5% due to a decrease in actual cupboards filling time. Due to correct design of different cane varieties, the effect of cane variety on filling coefficient, over-overlapping and under-overlapping was not significant. Also because of suitable speed ratio between test rig and planting system, the effect of the studied factors on over-overlapping and under-overlapping was not significant. Regarding the best operating condition and wear and tear of the planter, using this sugar cane billet planter under 3 to 3.5 Km/h travel speed is suggested. Key words: sugar cane billet planter, roller conveyor, metering device and arranging unit