The newly arising contractual disputes in modern society often concern contracts that are not of the contract types that exist in our contract law. The contracting parties may freely decide the contents and, as the parties are bound by the contents as a general rule unless it goes against customs and other social orders in good faith or goes against imperative laws, there is no limit to the contents. The existing regulations on standard contracts in civil law, however, only serve a general regulatory purpose and are limited in their capability to regulate the diversities, technicalities and complications of these new contracting relationships. As such, it is difficult to interpret and judge the legal nature of contracts and the meaning of their articles with regard to disputes concerning these new types of contracts. Therefore, a reasonable and appropriate standard for regulating and interpreting these new types of contracts is needed. Recently, there was a legal dispute between the Korea Football Association and Head Coach Cho, Kwang-Rae regarding the cancellation of his contract as the Head Coach of the National Football Team. The contract in question had differing elements in its content compared to the so-called standard contracts and, as such, it seems it will be difficult to clearly decide on an issue of legal dispute by categorizing the legal nature of the coaching contract as belonging to an existing standard contract type. In this context, this article seeks to study the contents regarding standard and non-standard contracts, decide on the type and legal nature of the coaching contract accordingly, and find a reasonable interpretation measure to judge the legal nature of the National Football Team coaching contract between the Korea Football Association and Head Coach Cho, Kwang-Rae. This can be used as reference in legal disputes later when interpreting the legal nature of similar coaching contracts and the meaning of their related articles.