The invention provides a production method for a ruminant rumen protein fodder. The method comprises the following steps: mixing bean pulp, smashed soybean hull and water, thereby acquiring a mixture, and then heating, drying and cooling the mixture, thereby acquiring the ruminant rumen protein fodder. According to the invention, vegetable protein is taken as a raw material, the protein in the fodder can be effectively protected through the rumen protection technique, the protein is prevented from being fermented and degraded in rumen and the protein directly enters into small intestine and is digested and utilized by small intestine, so that the effects of increasing the use ratio of the fodder and promoting the productivity of the animal can be achieved.