The current study was conducted to investigate the poisonous effects of Aluminum Chlorid dissolved in water alone and its dissolved in25% glacial acetic acid in some repoductive characters of male white rats (Rattus norvegicus), thirty rats ages ranged between( 100) day and weights of(200+220 gm) were used in this study. The study included tow experiments, each experiment, (5) treatments (3) rats per group. The first group of each experiment groups was considered the control group ,while the remaining four groups were considered as treatment groups. The first experiments were treated with (70 mg/kg of bodyweight) of Aluminum Chloride for different intervals (2, 5, 10, and 20 days); the second experiments was treated (70 mg/kg bodyweight) of Aluminum Chloride dissolved in25% glacial acitic acid. Body weight was measured for all rats before and after completed treatment periods of different, An autopsy was to study testicular weights, epididymis, prostate gland, and then been studying a count and nature of sperm in each group for their periods,Results showed a decrease in the body weight of treated rats, testicles, epididymis, and in the prostate gland. while the results showed, a decrease was also found in sperm count, as well as an increase in dead and abnormal sperms in the first treatment group as compared with the control group. were these changes generate according to period of treatment, In the second experiment asignificant increase in the effect because of using aluminum chloride dissolved in 25% glacial acitic acid for the same periods,