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In order to explore the feasibility of the straw multi-stage continuous cold roll forming method, a prototype was designed and tested. Orthogonal test method was used to test the four-factor three-level orthogonal test with the moisture content, crushing method, crushing length and feeding method of corn straw as the test factors, and the rebound rate, density and firmness of the formed blocks as the test indicators. The influence of experimental factors on experimental indicators was researched. The test results showed that the cross-riveted feeding method can most restrict the rebound of the shaped block;the density of the shaped block was mainly affected by the crushing method, followed by the length of the crushing;the solidity of the shaped block was mainly affected by the crushing method, and the moisture content was the second of it. Comprehensive analysis determined that the preferred forming parameters of the molding machine were: moisture content of 20%, crushing method by rubbing and crushing, crushing length of 80mm, feeding method by cross riveting. The experiment was carried out under the conditions of better molding parameters, and the performance indicators of the molding machine were tested. The results showed that the rebound rate of corn straw molding block produced by the molding machine was 7.26%, the molding density was 363.28kg/m3, and the firmness was 90.23%. The research results provided a reference for the research and development of biomass compression molding technology and equipment at normal temperature.