The test results evaluating the properties of self compacting concrete using high performance artificial lightweight aggregates which has been developed recently are discussed in this paper. The main subjects are the influences of unit weight of mortar, specific gravity and unit quantity of lightweight coarse aggregate, and water to powder volume ratio. As the results, it is possible to design the mixture proportion of self compacting lightweight concrete with high resistance to segregation by setting up unit quantity of aggregate, unit weight of mortar, and water to powder volume ratio according to material properties properly.