目的 开辟玉米秸秆综合利用的新途径，减少对环境的污染和破坏。方法 利用玉米秸皮进行微晶纤维素的制备，并对制备的微晶纤维素的成分、含量及不同制备条件下微晶纤维素的聚合度进行测定和分析。结果 根据实验结果可知，当反应时间为69 min，反应温度为50 ℃，纤维素酶质量为0.98 g时，玉米秸秆皮微晶纤维素的聚合度取得最优值为104；同时，利用响应面法分析了各因素对响应值的影响规律，建立了回归方程，根据方差分析结果，所建立的方程具有极显著性。结论 玉米秸皮微晶纤维素的制备及在喷墨打印纸制备产业的应用，为玉米秸秆的综合利用提供了有效的途径。

The paper aims to open up a new way for comprehensive utilization of corn straw and reduce the pollution and damage to the environment. The microcrystal cellulose was prepared from corn straw skin; and the composition, content and polymerization degree of microcrystal cellulose under different preparation conditions were determined and analyzed. According to the experimental results, when the reaction time was 69 min, the reaction temperature was 50 ℃ and the amount of cellulose was 0.98 g, the optimum value of polymerization degree of microcrystalline cellulose in corn straw skin was 104. At the same time, the influence of each factor on the response value was analyzed by response surface method; and the regression equation was established. According to the results of variance analysis, the established equation was very significant. The preparation of corn straw skin microcrystal cellulose and its application in preparation of ink-jet printing paper provide an effective way for the comprehensive utilization of the corn straw.