Abstract: A sintering method for a tantalum capacitor anode block, characterized in that: inserting a tantalum anode block molded from a tantalum powder mixed with an adhesive into a drying oven injected with a degreasing solvent; conducting hermetically low temperature solvent catalytic wet dewaxing; conducting vacuum drying; and conducting vacuum sintering. The tantalum anode block is obtain by the present invention has high specific surface area and high porosity, so the specific capacity is high, current leakage is small, and the carbon content and oxygen content is reduced to 0.005%˜0.010% and 0.18%˜0.65%, respectively.