The invention provides a preparation method of a solar lighting generation device which has high light energy use ratio, flexible installation and wide application range. The device comprises a light pipe and a solar generation component, wherein the solar generation component is fixedly wrapped on the outer side of the wall of the light pipe, and the sunlight receiving surface of the solar generation component faces towards the inside of the light pipe. The solar generation component is formed by solar cell nano materials which are formed on the wall of the light pipe in a growth manner of physical package or chemical deposition and conductive layers arranged inside and outside of the solar cell nano materials. The solar lighting generation device has the advantages of simple structure, convenient installation and preparation, high use ratio of the solar energy and simple preparation method, solves the sunlight transmission and lighting problems, and increases the generation function, thereby being applicable to the lighting and generation fields of various buildings.