In this article, the application conditions of "dare+ka" will be analyzed based on grammar. Through analysis, it comes to the following conclusions: 1. As "dare+ka" could link with particles in a sentence, "dare+ka" has to be explained as a well-organized concept. 2. "dare+ka" normally indicates a vague notion, however, "dare+ka" turns into a definite person when combined with other compositions, since it represents a same content as what follows subsequently. 3."dare+ka" has to be put after "NP+ka", since it initiates a parallel relation when followed by "NP+ka"