The invention discloses a paper currency value identification method, a paper currency value identification device, equipment and a storage medium. The method comprises the following steps: obtaining a binary image corresponding to a target characteristic region of a to-be-identified banknote; determining, in the binary image, whether the fact that a row projection of any row is greater than a preset threshold from up to down exists; when existence is confirmed, determining the row corresponding to the row projection as an upper boundary; determining a to-be-detected region according to the upper boundary, detecting, in the to-be-detected region, pixel points having the same preset gray values in the binary image, and taking the pixel points as to-be-detected pixel points; determining whether the binary image contains a horizontal line according to coordinate information of the to-be-detected pixel points; and, if the horizontal line is contained, determining that a currency value of the to-be-identified banknote is a corresponding currency value in a slope range of a non-horizontal line according to the non-horizontal line composed of the to-be-detected pixel points. The method provided in the invention can rapidly and accurately identify the currency value of the banknote.