The study aims at securing basic data for developing Starch lime, one of traditional construction material from the era of Chosun Dynasty, as eco-friendly plaster material, which is applicable to contemporary buildings, by mixing Starch lime and checking its property of matters. The results of experiments after historical research and selection of mix ratio are as follows: For viscosity and softness of dough before hardening after initial mix, it was excellent without workability affected by both mixing method of Yeonggeon-euigwe and field mixture. For setting time, mixing of Yeonggeon-euigwe seems to be very inferior for the contemporary construction process. And in the quantity per unit mixture only, it cannot expect moisture-proofness and waterproofness. Therefore if a construction is done according to the quantity per unit mixture, there will be a plenty of problems. For increasing adhesive hardness of Starch lime as adhesive material for laying traditional bricks and reducing its cracks after hardening, referring to the method according to field mixture seems to secure higher quality. Therefore, in order to develop eco-friendly material for the contemporary buildings, it requires new mixture method through reflecting Yeonggeon-euigwe and field mixture.