PROCESS FOR MANUFACTURING ANATOMICAL MODELS comprising the capture of one or more images, such as using common techniques such as CAT (computerised axial tomography), NMR (nuclear magnetic resonance), ultrasound or any other, and the processing of such images to select (segment) the different elements of the anatomical structure of interest from the images obtained, obtaining one or more editable computer files for the subsequent creation, using 3D printing, of elements of the anatomical model and moulds for its total or partial manufacture, characterised by comprising: - a first sub-process for generating the main moulds comprising modelling of the virtual path of the auxiliary positioning elements and their relationship with the main mould, calculating the cross-section and length of these auxiliary positioning elements, a step for discriminating by size between large parts and small parts,, and a step for creating the mould, where, for large parts, the step for creating the mould comprises printing the mould in PLA with a thickness of between 2 mm and 15 mm while, for small parts, the step for creating the mould comprises prototyping the part in positive, immersing it in silicone, curing the silicone, and removing the prototype; - a second sub-process for generating the internal elements comprising modelling the virtual path of the auxiliary positioning elements and their relationship with the internal element, calculating the cross-section and length of such elements, a step for discriminating between rigid elements and soft elements, a step for discriminating by size between large parts and small parts, and in the case of soft parts, a step for generating secondary moulds, a step of pouring filling material and an demoulding step, where, for soft large parts, the step for generating secondary moulds comprises printing the mould in PLA with a thickness of between 2 mm and 15 mm while, for soft small parts, the step for generating secondary moulds comprises prototyping the part in positive, immersing it in silicone, curing the silicone and removing the prototype, and further comprising printing rigid internal elements; - a third sub-process for positioning the internal elements, which when it includes soft elements comprises a step of reversible stiffening, comprising fastening the auxiliary positioning elements to the internal elements and the main mould, and where the auxiliary positioning elements are methacrylate rods having a refractive index similar to that of the parenchyma intended to remain inside the parenchyma; - a fourth sub-process for integrating the internal elements comprising a step of pouring of parenchyma and a demoulding step, wherein the demoulding step of the main or secondary mould made in PLA comprises heating to a temperature of between 60°C and 100°C; and - a fifth post-processing sub-process comprises buffing to remove imperfections and to smooth out surfaces and the application of a protective lacquer. - a first sub-process for generating the main moulds comprising modelling of the virtual path of the auxiliary positioning elements and their relationship with the main mould, calculating the cross-section and length of these auxiliary positioning elements, a step for discriminating by size between large parts and small parts,, and a step for creating the mould, where, for large parts, the step for creating the mould comprises printing the mould in PLA with a thickness of between 2 mm and 15 mm while, for small parts, the step for creating the mould comprises prototyping the part in positive, immersing it in silicone, curing the silicone, and removing the prototype; - a second sub-process for generating the internal elements comprising modelling the virtual path of the auxiliary positioning elements and their relationship with the internal element, calculating the cross-section and length of such elements, a step for discriminating between rigid elements and soft elements, a step for discriminating by size between large parts and small parts, and in the case of soft parts, a step for generating secondary moulds, a step of pouring filling material and an demoulding step, where, for soft large parts, the step for generating secondary moulds comprises printing the mould in PLA with a thickness of between 2 mm and 15 mm while, for soft small parts, the step for generating secondary moulds comprises prototyping the part in positive, immersing it in silicone, curing the silicone and removing the prototype, and further comprising printing rigid internal elements; - a third sub-process for positioning the internal elements, which when it includes soft elements comprises a step of reversible stiffening, comprising fastening the auxiliary positioning elements to the internal elements and the main mould, and where the auxiliary positioning elements are methacrylate rods having a refractive index similar to that of the parenchyma intended to remain inside the parenchyma; - a fourth sub-process for integrating the internal elements comprising a step of pouring of parenchyma and a demoulding step, wherein the demoulding step of the main or secondary mould made in PLA comprises heating to a temperature of between 60°C and 100°C; and - a fifth post-processing sub-process comprises buffing to remove imperfections and to smooth out surfaces and the application of a protective lacquer.