Abstract: The modular device for dorsal protection suitable to be worn by a wearer includes at least two holding elements arranged one beneath the other and suitable for receiving, on the front face thereof, the back of the wearer. The holding elements are interconnected, in pairs, on the rear face thereof, by at least one hinged connection, each hinged connection ensuring the link between two adjacent holding elements. Each hinged connection includes at least two degrees of torsional freedom and bending freedom such that each holding element and each hinged connection or joining part moves in relation to the other under the action of the movements of the wearer, while ensuring that the device is maintained in contact with the back of the wearer.