The invention provides an aluminum paste used for production of a silicon solar cell aluminum paste. The aluminum paste is composed of spherical aluminum micro-powders, an organic solvent and a surface treatment agent, wherein the content of the spherical aluminum micro-powders accounts for 89% to 91% of the total weight, the content of the surface treatment agent accounts for 1% to 2% of the total weight, and the content of the organic solvent is added up to 100%. The invention also provides a production method of the aluminum paste. The aluminum paste reduces the viscosity during the electronic aluminum paste production process; effectively avoids the problems of bulge, aluminum bead, warping, powder-dropping and falling during the sintering process of the solar silicon wafer production; increases the yield of silicon wafers; and increases the photoelectric conversion efficiency. The invention changes the powder supply mode in the electronic paste industry and adopts the aluminum paste form instead of the dry powder form in the prior art. The form change eliminates the danger of the dangerous goods and solves a series of problems in the production process.