Mainstream finance believes that the financial flexibility of enterprise reserves makes enterprises have a stronger abili-ty to resist risks in the face of the impact of external environmental uncertainty.Through the case study method,this paper analyz-es the negative impact of Sino-US trade friction on OFILM,and how the related impact spreads to JCET through the ripple effect.The results show that the trade friction involved in OFILM has indeed affected the peer company JCET through the ripple effect,and the share price of JCET has fallen and the business in overseas markets has shrunk due to the impact of the OFILM trade fric-tion case.As a strategy to deal with the ripple effect of trade frictions,JCET has improved its cash flexibility and debt flexibility reserves in real time.This paper not only provides practical evidence for the ripple effect of trade frictions,but also provides case support for the environmental adaptability adjustment and adjustment of enterprises'financial flexible reserves.