A study was carried out to study the effects of Ginger (Zingiber officinale) on quail semen quality, sexual hormones levels and histology of testicles. A total number of 108 birds at the age of 8 weeks were divided into four groups, with three replicates per treatment and 9 birds per replicate. Birds in control group were fed basal diets and birds in treatment groups were fed on diet supplemented with 0.25, 0.50 and 0.75% Ginger. At ages of 10 till 20 weeks, blood and semen samples were collected, and analyzed. At the end of the trial. One male from each replicate was slaughtered and testes were excised for histological analyses. Result of this experiment showed that supplementing quail diets with Ginger improved sperm concentration, sperm quality factor %, livability% and reduced abnormality%. Also results showed significant (P<0.05) higher semen plasma glucose and total protein concentration in treated groups than in the control. In addition, serum LH, FSH and testosterone levels were higher in treated groups compared with control group. In general, diets supplemented with Ginger showed significant increases in reproductive related parameters, and it could be considered sex promoter for quail birds.