（School of Law，Jiangnan University，Wuxi 214122，China)
Abstract: With the gradual development of pilot foreign athlete naturalization in China, there are ever increasing controversies of all sorts about naturalized athletes. As a way of nationality acquisition, naturalization involves law in terms of procedure, and such issues as nation identification and identity in terms of nature, and is therefore di-vided into such two different forms as nationality naturalization and nation naturalization. The separation between nationality naturalization corresponding to country identity and nation naturalization corresponding to nation iden-tity will result in people’s strong feelings of rejection toward naturalized athletes, which was shown prominently in the Delgado naturalization incident. While solving this identity difficulty requires comprehensive considerations in terms of such two aspects as conception and institution.
Key words: sports law；naturalization；nationality；nation；identity；Delgado