1) carefully consider shortening production time. In production practice, six sigma management focuses on the abnormal fluctuation of production line. Due to the large number of products in process on the production line, the phenomenon of random stacking on the site is serious, and even some companies directly set up temporary storage points on the production site, which seriously violates 5S management. In the long run, it is likely to reduce the efficiency of the production line and affect the concealment of product quality problems. If an enterprise keeps this state for a long time and keeps the status quo without reform, not only the production plan of the company can not be guaranteed, the production order can not be completed on time, and the market will be very weak. In addition, the number of rework and repair of the company's products, and even the customer's complaint rate are rising sharply. Therefore, all kinds of hidden costs, such as labor cost increase, the company's reputation and efficiency will also be lost.2) over reliance on the participation and contribution of elites. When the company implements Six Sigma management mode, it mainly establishes research team according to the departments involved in specific problems. Although the goal of this team is clear, it does not conform to the rules of full participation, which leads to the reduction of the participation of grass-roots employees. Due to the lack of enthusiasm and enthusiasm of front-line employees for improvement, even some resistance, when the improvement results are implemented to the production line, they are afraid of change, which hinders the progress of research, and even leads to the failure of research.