This paper focused on examining the system of journalistic genres appeared on Gia Dinh Bao, the first Vietnamese-language newspaper, in the dawn of Vietnam’s journalism (1865-1930). Almost all the typical genres of modern journalism appeared on Gia Dinh Bao, including news, editorials, features, reportages, feuilletons, etc. However, all the genres were conveyed in the forms of pure, basic and simple writing styles. The unclear distinction among these genres led to the creation of many interesting hybrids. The interference of different genres of articles was not only limited in the field of journalism but also expand to the field of literature, administration, education, advertising, etc.