The invention discloses pine-nut fruit energy bars and a preparation method thereof. The pine-nut fruit energy bars are composed of pine nut kernels, preserved fruits, fructose, sucrose, oligosaccharides, trehalose, omega-3 unsaturated fatty acids, omega-6 unsaturated fatty acids, coconut oil, soybean phospholipids, protein powder, compound vitamins, compound minerals, silicon dioxide, and palm oil. The preparation method of the pine-nut fruit energy bars comprises the following steps: drying and curing pine nut kernels, adding the cured pine nut kernels into all remaining raw materials, carrying out uniform mixing, tightly pressing the mixture, baking the pressed mixture by using far infrared radiation, releasing the baked mixture from a mould, and carrying out cutting so as to obtain bars. Ratios of the saccharides are optimized so that energy can be slowly released so as to improve effective time of the energy bars; moreover, excessively soft or excessively hard taste of the energy bars is improved so that the defect of liable breaking during transportation is reduced, and hardening of the energy bars are slowed down so as to prolong shelf lives of the pine-nut fruit energy bars.