The invention discloses a galvanized steel coil finishing and embossing technology. The galvanized steel coil finishing and embossing technology comprises the following steps that S1, a steel coil is subjected to uncoiling, welding, degreasing, drying and annealing to obtain a primary steel coil; S2, the primary steel coil is galvanized continuously and then cooled, so that a galvanized steel coil is obtained; S3, the galvanized steel coil is subjected to finishing, embossing and high-pressure water gun treatment, withdrawal and straightening, and surface treatment, and an embossed steel coil is obtained; and S4, the embossed steel coil is coiled and divided; specifically, according to degreasing, the degreasing temperature in the primary chemical degreasing process is 61-63 DEG C, the concentration of primary degreasing fluid is 12-16%, the degreasing temperature in the secondary chemical degreasing process is 55-60 DEG C, and the concentration of secondary degreasing fluid is 10-12%; during primary electrolytic degreasing, the degreasing temperature is 58-63 DEG C, the concentration of electrolyte is 18-23%, and electrolysis lasts for 15-30 s; and during secondary electrolytic degreasing, the degreasing temperature is 55-60 DEG C, the concentration of electrolyte is 8-10%, and electrolysis lasts for 15-30 s.