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Semiconductor quantum dots (QDs) formed by Stranski-Krastanow growth mode has enabled the realization of highly-efficient optoelectronic devices such as QD lasers.Also, unique features of the QDs are promising for the development of solid state quantum information processing technologies.Particularly,Ⅲ-nitride QDs are important for high-temperature operation of quantum information devices.In this presentation, we discuss our recent advances in site-controlled single GraN/AlGaN nanowire quantum dots.