The invention discloses a shopping guide device based on facial recognition. The shopping guide device based on the facial recognition comprises a commodity data base, a face information acquisition module, an age judging module, a gender judging module, a product relation module and a screen, wherein the commodity data base is used for classifying commodities into a plurality of categories according to age brackets and genders, the face information acquisition module is used for acquiring face information of a customer, the age judging module can judges the age according to the acquired face information, the gender judging module can judge the gender according to the acquired face information, the product relation module displays the information of the commodities in the categories of the age and the gender according to the obtained age and gender, and the screen is used for displaying the information of the commodities. According to the shopping guide device and method based on the facial recognition, the commodities are categorized according to the age and the gender, the age and the gender of the customer are obtained by acquiring the face information of the customer and analyzing and judging the face information, then the commodities or commodity information according with the age bracket and the gender are displayed to the customer, other unrelated commodities do not need to be shown to the customer, and allocation of resources is optimized.