The present invention discloses crisp biscuits containing ginger extract and a preparation method thereof. The crisp biscuits consist of the following raw materials in parts by mass: ginger 14 parts, grease 7-11 parts, white granulated sugar 15-22 parts, milk powder 2-7 parts, cake flour 55 parts, corn starch 5-9 parts, sodium bicarbonate 1-1.5 parts and table salt 0.4 part; the preparation method comprises the following steps: (1) weighing the ginger, extracting the ginger according to a material liquid weight/volume ratio (kg/L) of 1:10 in boiling water bath for two times to obtain extract, and concentrating the extract to obtain ginger aqueous extract concentrate, weighing the grease, white granulated sugar and milk powder, and mixing the ginger aqueous extract concentrate with the weighed grease, white granulated sugar and milk powder evenly; (2) kneading dough by pouring the evenly mixed materials into a dough kneading machine, then weighing the cake flour, corn starch, sodium bicarbonate and table salt, and adding the weighed cake flour, corn starch, sodium bicarbonate and table salt into the dough kneading machine to obtain dough; (3) making the dough into biscuit bases; and (4) baking the biscuit bases with upper fire (170 DEG C) and lower fire (150 DEG C), and cooling and packaging the crisp biscuits. The crisp biscuits are conducive to the development and application of the ginger, and improve the function value of biscuits at the same time; the ginger has a good protective effect for gastrointestinal tracts; and the crisp biscuits have a unique flavor of the ginger and a simple process, and effectively reduce pungent smell of the ginger so that consumers are prone to accepting the crisp biscuits.