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The objective of this study was to investigate the physiochemical qualities, antioxidant activities and anthocyanin content of Riceberry rice for the selected locations in Thailand. The study on the Riceberry rice was conducted from the five locations: Chiang Mai, Lampang, Phetchabun, Sing Buri, and Surin provinces; they were evaluated on the qualities such as length, width and color values (L*, a*, and b*), proximate composition, total phenolic content (TPC), DPPH radical scavenging activity assay, ABTS radical scavenging activity assay and anthocyanin content. The results indicated that the difference in areas were significantly different of L* a* and b* values (p< 0.05). The percentage of moisture content was in the range of 9.69 to 11.59. The fat contents were in the range of 2.46% to 3.35%. The percentage of protein, ash, fiber and carbohydrate contents was in the scope of 7.84–9.25, 9.69–11.59, 1.82–2.40 and 73.45–76.50, respectively. The quantitative composition of total phenolic compound,% scavenging ability of DPPH,% scavenging ability of ABTS, anthocyanin content of Riceberry rice in different areas all had a significant difference (p< 0.05). As for total phenolic compound and total anthocyanin the content was between 179.16–327.61 mgGAE/100g and 24.69–272.76 mg/100g of rice, respectively. The percentage scavenging ability of DPPH and percentage scavenging ability of ABTS was in the range of 39.25 to 71.54 and 27.29 to 43.03, respectively.