The invention relates to an energy bar which contains 0.5-10 parts of collagen peptide by weight. The energy bar further contains 0-40 parts of grain flour, 10-60 parts of albumen powder, 0-8 parts of puffed grain granules or nut granules, 10-30 parts of syrup, 4-20 parts of grease and 0-2 parts of nutrients by weight. The invention has the advantages that the energy bar has good moisturizing effect, thereby mitigating the loss of moisture during storage, ensuring the softness and the chewiness of the energy bar, and prolonging the shelf life. Moreover, the energy bar has a diverse nutritional value, thereby providing additional collagen to human body, in particular to athletes who need to deal with osteoarthrosis.