The invention discloses high-adhesion-stability silver-aluminum slurry for a solar battery. The high-adhesion-stability silver-aluminum slurry comprises the following components in percentage by weight: 65-80% of a conductive metal powder material, 7-16% of glass powder, 6-17% of an organic binding agent, 0.8-1.5% of an additive, wherein the total percentage is 100%; the conductive metal powder material consists of silver powder and aluminum powder; the weight ratio of the silver powder to the aluminum powder is (8:1)-(5:3); the glass powder comprises the following components: 3-17% of SiO3, 1-2% of TiO2, 35-55% of Bi2O3, 4-8% of Al2O3, 1-7% of SrC12, 15-38% of B2O3, 2-5% of SnO2 and 0.1-2% of CaO, wherein the total percentage is 100%. As silver powder and aluminum powder are taken as the mixed conductive metal powder material, and by optimizing the ratio of the conductive metal powder material, a mixed metal electrode prepared from the silver-aluminum slurry which is sintered is appropriate in thermal expansion coefficient, that is, the purpose of controllability of the thermal expansion coefficient of an electrode can be achieved.