1, the color is different: purple rice and black rice although the color is more similar, but there are different, purple rice is because of the milling out of the rice grains long and thin purple and got this name, uniform particles, color purple and black, and black rice grain appearance was long oval, is black or black brown.

2, different varieties: black rice is black rice processing products, is a round-grained rice category, grain type indica, round-grained two kinds of non-glutinous rice; and purple rice is a glutinous rice category, divided into purple round-grained, purple glutinous two kinds.

3, different nutrients: black rice in the attention of the nutrients are protein, fat, carbohydrates, crude fiber, chlorophyll, vitamin C, anthocyanin, carotene, cardiac glycosides, etc., while the purple rice in the main components are lysine, tryptophan, vitamin B, folic acid, pure natural nutrient pigments and tryptophan.

4, drop color color is different: black rice and purple rice in the cleaning, are prone to slight discoloration of the situation, this is because purple rice and black rice contains a certain amount of anthocyanins on the shell, dissolved in water will be easy to make the water appear color, black rice drop color is generally presented as black, while purple rice is purple.