Saffron ( Crocus Sativus L.) is a plant of Iridaceae family. Saffron is a sterile plant which propagates with corms. Stigmas of saffron flowers are a spice with coloring and flavoring properties for foods, drinks, confectionery, tea making, and pharmaceutical applications. One of the major problems of the different stages of the production of saffron is non-mechanizd planting and harvesting of this crop. Lack of labor and high costs in short peeriods of planting and harvesting have been limit the cultivation of this crop. The main objective of this study was to design and develop a special saffron bulbs planter. A subsection of this project is about the biophysical properties experiments of saffron corms. The saffron corms were gathered from two regions of Iran, Mashhad and Naeen. Corms were in two physiological stages of dormancy and awake. The physiological properties of saffron bulbs included bulk density, repose angles, unit mass, moisture content, dimensions, sphricity, unit volume, surface area, true density, porosity, and static friction coefficient were measured. The corms were classified into four groups namely very small, small, medium and large based on the unit mass of corms. Mean comparisons were done to recognize the significant differences between the mean values of physical properties of defined groups. Differences of mean values of unit mass, unit volume, major diameter, minor diameter, height, surface area, geometrical mean diameter, and arithmetic mean diameter were significant between four groups. In addition, statistical analysis was done using SAS 9.4 software to determine the significant differences between groups. Mechanical properties of saffron bulbs including rupture force, maximum displacement, and modulus of elasticity, poisson?s ratio, maximum contact stress, rupture energy and percent elasticity were determined in the experiments using Universal Compression and Tension System. Differences of modulus of elasticity and poisson?s ratio were not significant for Mashhad corms and Naeen. Mean values of corms for the awake bulbs were significantly greater than corms in the dormancy stage. The maximum contact stress of corms for the awake bulbs was significantly greater than corms in the dormancy stage at both direction of impressure. The parts design and assemble was performed by the softwares Solidworks 2015 and Siemens NX 9.0. According to the selected planter mechanisms the transmission mechanisms, structures, joints, and fittings were defined and modeled. The planter consisted of one structure, one reservoir, and 7 different mechanisms. A 3-phase electrical motor was used for planter having 1.5 hp and maximum rotational velocity equal to 1400 rpm. A helical 1:10 gearbox was used for decreasing the rotational velocity of motor. Evaluation test was done on a test-rig with 3 forward speeds and 3 rotational velocities of metering device with three replications. Velocity changes were done by an invertor. Results indicated the damage percent and non-planting index had correlation with metering device velocity. Optimum forward speed was determined at 2.7 km h -1 and the metering device velocity was determined to be 45 rpm for the optimum machine operation.