In order to research the even filling technology of fried capsicum sauce products, taking uniformly stirring of fried capsicum sauce products as the research content, solid-liquid mixture of fried capsicum sauce as the research object, the stirring effect was analyzed with the flat blade angle as 0°, 30°, 45° and 60°. Fluent software was calculation platform and the results of calculation was analyzed, which was that the ideal stirring effect was when the blade angle was 30°. But there were still dead angle on the bottom of the groove. After reducing the distance between the blade and the bottom and renew the model, the calculated results shown that the mixture flow situation was further improved, the solid phase was well-distributed in the mixture, which was consistent with the expected effect. The method can be a numerical calculation method to study the automatic filling technology of fried capsicum sauce.