The invention provides a lycium ruthenicum mill moisturizing and repairing aqua gel and a preparation method of the aqua gel. The moisturizing and repairing aqua gel is relatively convenient to use, and the aims of moisturizing and repairing the skin from inside to outside can be achieved during sleep. Lycium ruthenicum mill, yeast, seaweeds and a propolis extract liquid are added into the moisturizing and repairing aqua gel, so that the moisturizing and repairing aqua gel has the functions of moisturizing the skin at night in a long-acting way, supplementing amino acids, fully repairing a dry and dark sub-health state of the skin, arousing the water vigor of the skin, opening a permeation channel for permeating nutrient substances for the skin, accelerating the self-repair of the skin and strengthening the regeneration capability of the skin, so as to enable the skin to be restored to be moisturized and tender, compact, ruddy and glossy as well as rich in elasticity, and has the effects of freckle removing, whitening, antioxidation and senility preventing. Artificial color is not added into the lycium ruthenicum mill moisturizing and repairing aqua gel, and the lycium ruthenicum mill moisturizing and repairing aqua gel takes natural biological extracts as active substances, has the special effects and is obvious in effect after being used for a long time. Furthermore, the lycium ruthenicum mill moisturizing and repairing aqua gel is simple in preparation technology, excellent in quality, safe and free from side effects.