The invention discloses a tool bag for assessing skin conditions. The tool bag is characterized by comprising a laminated film assembly and a keratinocyte sampling and detecting tool. The laminated film assembly is used for transcribing skin texture; the laminated film assembly comprises a laminated film frame, a laminated film and a laminated film sticker, and a hole is formed in the middle of the laminated film frame; the keratinocyte sampling and detecting tool comprises a loading plate and a transparent adhesive tape, a collecting hole is formed in the loading plate, a chamfer is arrangedon a side of the collecting hole, an adhesion layer of the transparent adhesive tape is fixed to a chamfer-free side of the collecting hole, and the transparent adhesive tape completely covers the collecting hole. The tool bag has the advantages that keratinocyte and skin texture observation results are integrated with one another and are accurately analyzed to obtain skin physiological conditioninformation, customized formulas can be guided and developed by the aid of the skin physiological condition information, and accordingly skin can be accurately protected in a personalized manner.