The invention provides a black wolfberry moisturizing and repairing gel. The invention also provides a preparation method of the moisturizing and repairing gel. The moisturizing and repairing gel of the present invention is more convenient to use, and can achieve the purpose of moisturizing and repairing the skin from the inside out during sleep. The added black fruit wolfberry, yeast, seaweed, and propolis extracts can keep the skin moisturized for a long time at night, replenish amino acids, fully repair the dry and dull sub-health state, stimulate the skin's water vitality, and open the penetration channel for the skin. Nutrients, accelerate the self-repair of the skin, strengthen the skin's renewal ability, restore the skin's suppleness, firmness, rosy luster, and elasticity. It also has the effects of removing freckles, whitening, anti-oxidation, and anti-aging. The invention does not add artificial pigments, uses natural biological extracts as active substances, exerts its specific effects, has obvious long-term use effects, and has simple production process, high quality, safety and no side effects.