Pectus carinatum is a common thoracic deformity, and its treatment has a long history. The early operation was open operation. With the emergence of the concept of minimally invasive surgery in clinical practice, minimally invasive surgery of pectus carinatum has gradually become the mainstream in its treatment. The earliest minimally invasive operation was Abramson procedure. This kind of operation has certain effect, but it also has many disadvantages. In order to eliminate its disadvantages, we designed a new operation, Wenlin procedure. In essence, this operation is a template plastic surgery. Because of the special design, it has obvious advantages. So far, this operation has been widely used in China. Clinical experience shows that this operation is safe, simple and practical. However, like all other operations, this operation also has defects. In the future use process, its defects need to be continuously discovered and improved.