NOVELTY - An efficient and environmentally-friendly texturing liquid comprises sodium hydroxide, additive, allantoin, sodium hyaluronate, hydroxypropyl methyl cellulose, sodium lauroyl glutamate, sodium cocoyl isethionate, sucrose stearate and water. The additive comprises saponin, nano-titanium dioxide, ammonium persulfate, vinyl acetate, sodium bicarbonate, lauryl glucoside and water.    USE - The efficient and environmentally-friendly texturing liquid is useful for surface of monocrystalline silicon wafer, which is useful in solar cell.    ADVANTAGE - The texturing liquid is efficient and environmentally-friendly, does not contain isopropyl alcohol, is easy to degrade, effectively improves consistency and repeatability of surface texturing process, improves density of textured surface, and improves solar cell efficiency.    DETAILED DESCRIPTION - An efficient and environmentally-friendly texturing liquid comprises 0.5-1 pt. wt. sodium hydroxide, 3-5 pts. wt. additive, 2-4 pts. wt. allantoin, 0.1-0.2 pt. wt. sodium hyaluronate, 0.3-0.5 pt. wt. hydroxypropyl methyl cellulose, 0.3-0.5 pt. wt. sodium lauroyl glutamate, 0.3-0.5 pt. wt. sodium cocoyl isethionate, 0.1-0.2 pt. wt. sucrose stearate and 80-120 pts. wt. water. The additive comprises 10-15 pts. wt. saponin, 0.1-0.15 pt. wt. nano-titanium dioxide, 0.1-0.2 pt. wt. ammonium persulfate, 1-1.5 pts. wt. vinyl acetate, 0.2-0.4 pt. wt. sodium bicarbonate, 1-2 pts. wt. lauryl glucoside and 100-150 pts. wt. water, and is prepared by crushing saponin into powder, adding saponin powder, sodium bicarbonate and lauryl glucoside to water, stirring at 70-80 degrees C under 200-400 rpm for 4-6 hours, cooling, filtering, adding vinyl acetate and nano-titanium dioxide to filtrate, ultrasonically dispersing the mixture for 5-10 minutes, adding 2-5% ammonium persulfate solution, stirring at 70-80?OC for 1-2 hours, cooling and filtering. An INDEPENDENT CLAIM is included for preparation of efficient and environmentally-friendly texturing liquid.