1. You can contact a professional decorator to handle it. 2. You can purchase relevant materials and tools to solve this problem. First of all, prepare household sealant, as well as the fallen kick line and related parts, and it is best to prepare a small brush; Then clean the kick line and the soil on the wall with a brush; Then, put the fallen kick line and related parts in the original position, and then apply sealant on the fixing buckle and connecting parts, which needs to be higher than the groove; Finally, after installation, press some heavy objects on it to play a stable role, and wait until the glue is dry before it is completely bonded. The reasons for this situation are as follows: 1. It is probably because you don't hit the edge of the kick line with a cleaning tool when cleaning, which leads to the loosening of the kick line and easy to fall off after a long time. 2. It may also be because the interior of the house is too humid. At this time, the kick line will be loose due to the influence of moisture in the damp room. In addition, if the quality of the adhesive is not very good, then the kick line will fall after a long time. 3. It is also possible that the latex paint used for bonding is not effective. It may also be caused by the wall putty that was painted during the decoration or the previous wall putty was not scraped clean.