Indonesia is a great area for the development of sustainable agricultural cultivation technology. Wet rice cultivation management system and method is still done traditionally. These activities are requiring the expertise of a very high order to obtain a uniform spacing and planting. Heterogeneity of plant spacing will have an impact on seed propagation delays planting, the farmer difficult when doing weeding, fertilizing and spraying. Transplanting of seedlings is a labour-intensive operation in the cultivation of rice. There exists a need to mechanize for this operation. This study aims to determine the design parameters of the mechanism design four link bar for modelling mechanism in order to obtain the optimum parameters of the locus of planting. Design tools rice growers using the four-link bar mechanism able to work mechanically to take the rice seedlings from hoper and planted with uniform spacing, closing the planting hole, reducing the time of planting and operational costs. The method used in this research is the design of the prototype and design of functional and structural approaches. Research has produced a prototype component of the combined mechanisms of rice cultivation four link bar mechanism which can move the locus of decision-continuous form of seeds and planting seeds for the six rows.
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