Resumo. Over 36 years of implementing renovation, integration, and development, Vietnam has achieved many results in the economy, politics, culture, national defense, security, material and spiritual life of the people. It is the result of the thought renewal process, inheritance, and promotion of traditional values of the nation in general, including ideologies formed in the late 19th century and early 20th century in Vietnam in particular. The objective requirements of the historical conditions of the world and of Vietnam in the late 19th century and early 20th century were the basis that formed and developed the democratic thought of Nguyen An Ninh (1900 - 1943). There are many progressive innovations in Nguyen An Ninh's democratic ideology, affecting the socio-economic life at that time. His ideology was one of the typical views for a tumultuous historical period in Vietnam at the end of the 19th century and the beginning of the 20th century. In the new context, the work of continuing to summarize practices, combining research with previous legacies to supplement and develop theories, serving the cause of national construction, and mobilizing the synergy of both tradition and modernity to meet new requirements in the context of innovation and integration in Vietnam today is essential. From the philosophical approach, political philosophy, the history of philosophy, to the research and analysis of historical documents and other related archives, This article focuses on analyzing and clarifying the basic content of Nguyen An Ninh's democratic ideology, thereby correlating with the promotion of democracy in innovation and integration in Vietnam today.