In this report, the production of dissolving pulp (alpha-cellulose) from corn stalk was investigated. The chemical analyses were applied on the samples of the stalk harvested from the agricultural farms located between Bisotun and Sahneh. According to the analyzes, 62.9% cellulose, 20.5% lignin 8.9% ethanol-acetone extractives contents, 7.7% ash, and 5.77% moisture was determined. Firstly, the pre-hydrolysis stage accompanied once with water and another once with 0.1% sulfuric acid, having a temperature increasing and decreasing profile and four residence (reaction) times of 0, 10, 20 and 30 minutes at the maximum temperature of 160°C. With respect to the pulping yield, the pre-hydrolysis time of 30 minutes at the maximum temperature was chosen as the optimum time Then the influence of cooking time, active alkali and sulfidity in Kraft pulping of corn stalks has been investigated at different cooking times of 30, 60, 90 minutes, an active alkali charge of 14, 16, 18, 20% and a sulfidity of 10% and 25%, at maximum temperature of 170°C. The optimum cooking time was chosen to be 90 minutes, with respect to pulping yields. Optimum residence time for Kraft pre-hydrolysis processes showed good agreement with literatures. The effects of these parameters were studied on pulp yield, kappa number, pH, alpha-cellulose content and degree of polymerization. The results showed that, kappa number, degree of polymerization and pulp yield decrease with increasing of chemical concentrations. Finally, the produced pulps of cooking stages has been bleached with two sequences HEH and HEHP, using H1(2.5%), E(5%), H2(5%), P(2.2%). As a bleaching result, we found that the highest alpha-cellulose content (94.1) achieved under the most severe cooking conditions: active alkali of 20% and sulfidity of 25%. It should be mentioned that, however, in this case the degree of polymerization was the least (269.0 in water pre-hydrolysis).The minimum alpha-cellulose content was 73.7 and the maximum degree of polymerization 334.7, achieved under mildest conditions, which done with active alkali of 14%, sulfidity of 10% for acid pre-hydrolysis of pulp. In this study we also used one sort of industrial residue as pulping liquor, which results in the highest alpha-cellulose content of 97.4 with the polymerization degree of, 235.4.