The construction process and design of inducing joint for an underground project of Changzhou are analyzed.The design details and construction program are introduced.After construction,the fissures of two wallboards are described.The results show that fissures may occur intensively in the position of inducing joint when the construction process is carried out.The measures can not only reduce the amount,but also decrease the width of fissures.There is no water seepage on the wall,and the performance of the leaks in the inducing joint are good after properly treated.Meanwhile,the measures that weaken the strength in the inducing joint,can not influence the whole construction strength because of the exterior protected construction.The application of the inducing joint may reduce the project cost of anticrack and the seepage-proofing repairs expense.