The invention provides manufacturing technique of highlight floor base material. The manufacturing technique of the highlight floor base material comprises steps of wood raw material peeling, chipping, wood chip screening, washing, pre-cooking, cooking, hot grinding, glue mixing, drying, formation and prepressing, slab hot pressing, cooling tempering, sanding saw cutting, grading and packing, wherein in a drying step, moisture content after drying is 9.0-10.5%; in a slab hot pressing step, hot pressing temperature is 170-225 DEG C, five sections of temperature zone are adopted, hot pressing pressure is 0-4MPa, and a hot pressing factor is 7.2-8.0s/mm, maximum pressure is 3-3.7MPa. A small step is arranged at the top end of the highest density in density distribution of a fracture surface and gradually transits to a core layer, and surface highest density is 1100-1150kg/m<3>; in a sanding step, bearing jump of a sander drum is controlled within 2.0mm/s, and in the fine sand, a tape of more than 150 meshes is used to process. The manufacturing technique of the highlight floor base material has high surface smoothness and evenness, surface density and fracture density distribution are matched with pressing and pasting technique, and moisture content is control with quite narrow fluctuation range.