We propose the Mixture Multi-component Extension (MME), which is an extension of the Lattice Boltzmann Method (LBM), to obtain a multi-component LBM model from a single component LBM model. There are advantages of MME that it has ability of coupling components with different masses, flexible application to various LBM models, and simulation of thermal miscible multi-component fluid. In addition, MME is able to solve molecule diffusion and convection of each component simultaneously.