Abstract: The invention relates a method for manufacturing an orthopaedic insole and to a product thus obtained, the method comprising: a first step (1) of 3D modelling a future insole with a specific geometry and which will ideally be formed by a soft surface (10) and a rigid surface (11); a second step (2) of software treatment for the “flattening” or modelling of the original soft upper part (10), transforming same into a soft surface or element (10a) obtained with its lower surface being completely flat and the relative thicknesses still being maintained; a third step (3) of manufacturing the soft surface (10a) obtained in the second step (2) by means of milling or additive manufacturing techniques; a fourth step (4) of joining the obtained soft surface (10a) to the rigid surface (11), obtaining a sandwich-type insole.