The invention provides a polishing solution for glass. The polishing solution is prepared from 8 to 30 parts by weight of aluminum oxide, 9 to 32 parts by weight of cerium oxide, 5 to 8 parts by weight of dispersing agent, 1 to 5 parts by weight of grinding aid, 0.01 to 1 part by weight of pH modifier and proper amount of water. The water enables the total amount of the polishing solution to be 100 weight parts. The particle size of the aluminum oxide is 100 to 500 nm and the particle size of the cerium oxide is 600 to 1200 nm. Compared with the prior art, the polishing solution disclosed by the invention has the advantages that the cerium oxide and the aluminum oxide are compounded to serve as an abrasive; the aluminum oxide can effectively improve the polishing rate; the cerium oxide canreduce the surface roughness of machining parts and improve the strength of the glass; meanwhile, elements such as F and O in the dispersing agent can be complexed with metal ions in abrasive particles, so that the suspension property of the polishing solution is improved; by combined action of all the components, the polishing solution has better polishing efficiency as well as better suspensiondispersion and high stability; the polished product has the advantages of high strength, low roughness and higher apparent yield.