The present invention relates to a method of controlling weeds in a turf grass using a sulfonylurea compound. More specifically, the present invention relates to a turf grass herbicide which comprises as an effective component a benzene sulfonylurea derivative compound that is represented by the Formula (I), or a thiophene sulfonylurea derivative compound that is represented by the Formula (II), and a method of controlling selectively poaceae, cyperaceae and broadleaf weeds by using the sulfonylurea compounds.