When it comes to innovation, tourism industries are highly dependent on competent human resources. In service industries, especially in the tourism industry, an organization cannot survive without innovation. In this study, the different categories of Innovation are represented in a novel conceptual model for the first time. This model introduces competent human resource as a primary source of innovation and also depicts the main outputs of innovation. The present study acknowledges managers about the critical role of qualified human resource in developing a brilliant novel idea which provides the organization with efficacy, profitability, high performance, competitive advantage, market value, and productivity. The represents the main categories of innovation and presents a new category of them according to the scholar's opinions.