PURPOSE: To provide the method for manufacturing a silver thin sheet used for an electrical contact material or the like.

CONSTITUTION: A silver ingot constituted of 20 to 100ppm Cu, and the balance Ag with inevitable impurities is prepd. This silver ingot is subjected to homogenizing treatment under the condition of 550 to 900°C. Next, primary cold rolling is executed. The primary cold rolling is constituted of cold rolling in the breadwise direction of the silver ingot and the subsequent cold rolling in the longitudinal direction. In the cold rolling in the width direction of the silver ingot, the primary draft in the width direction is regulated to 20 to 70%. Furthermore, the primary draft after subjected to the cold rolling in the width direction and the cold rolling in the longitudinal direction is regulated to 50 to 95%. After the primary cold rolling, process annealing is executed under the condition of 150 to 600°C. Then, secondary cold rolling is moreover executed. The secondary draft is regulated to 50 to 95%. After that, final annealing is executed at ≥150°C, is required. Thus, the objective silver thin sheet can be manufactured.