Uxie is a small, gray, fairy-like Pokémon with two grey tails that are each encrusted with a red gem. These are, presumably, two of the jewels which make up the Red Chain. Uxie has a partially yellow face with another red gem encrusted into its forehead. Uxie's head faintly resembles that of a helmet or a human brain.

Uxie always has its eyes closed due to the fact that it can wipe out the memory of those who look in its eyes.