In this paper the functional Ag composite-pigment was prepared by dry impact-blending method and spray vapor-drying method, using inorganic materials used for paper coating and filler such as talc and clay. Spray vapor-drying method is used for making new functional nano material by surface modification and composition. Core particle and Ag liquid were susceptible to be composited by impact force resulting from very high-speed air circulation. Ag composite-pigment formed was tested with powder physics tester and resulted in improvement of fluidity. It also resulted in excellent antibiotic property. Since design of nano particle pigment and application to a field of paper can be come true, it is thought that complementation in terms of both principle and application is possible, and that R&D for the production of various functional paper products can be activated.