Taking rice noodles cutting machine which developed for some rice noodles production enterprise as the research object, the composition and working principle of rice noodles cutting machine are introduced. Aiming at the problem of excessive shaking,counting errors, the falling rod, the wear and tear of some parts, etc. in the feeding assembly of the rice noodles cutting machine, the design of its flip mechanism was improved. Using Adams software to simulate the motion trajectory, the rigid impact in motion was effectively reduced. SolidWorks software was used to conduct 3d modeling of the improved and before turning mechanism, and static analysis was carried out using Simulation plugin. Finite element analysis (FEA) results show that the improved system to a great extent increases the movement stability, has better accomplishment of orderly, continuous and stable feeding for the feeding assembly, and implementing the rice noodles cutting machine work continuously and stably.