Method for fabricating a turbomachine blade (100; 200) made of composite material including a fiber reinforcement densified by a matrix, the method including: - fabrication by three-dimensional weaving of a one-piece fiber blank, - shaping of the fiber blank to obtain a one-piece fiber blade preform having: - a first portion constituting a preform of an airfoil and a blade root, - a second portion constituting a preform of a blade inner platform, said blade preform then lacking a blade anti-tilting wall preform, or constituting of a blade anti-tilting wall preform, said blade preform then lacking a blade inner platform preform, and - a third portion constituting a preform of a blade outer platform spoiler plate, said blade preform then lacking a blade outer platform wiper plate preform, or - a second portion constituting a preform of a blade anti-tilting wall, said blade preform then lacking a blade inner platform preform, and - a third portion constituting the preform of a blade outer platform spoiler plate, said blade preform then lacking a blade outer platform wiper plate preform, or constituting a preform of a blade outer platform wiper plate, said blade preform then lacking a blade outer platform spoiler plate preform, - densification of the preform by a matrix to obtain a blade made of composite material having a fiber reinforcement consisting of the preform and densified by the matrix, and constituting a single part with two of the following elements: blade inner platform, blade anti-tilting wall, blade outer platform spoilers or with two of the following elements: blade anti-tilting wall, blade outer platform spoilers and blade outer platform wipers. - fabrication by three-dimensional weaving of a one-piece fiber blank, - shaping of the fiber blank to obtain a one-piece fiber blade preform having: - a first portion constituting a preform of an airfoil and a blade root, - a second portion constituting a preform of a blade inner platform, said blade preform then lacking a blade anti-tilting wall preform, or constituting of a blade anti-tilting wall preform, said blade preform then lacking a blade inner platform preform, and - a third portion constituting a preform of a blade outer platform spoiler plate, said blade preform then lacking a blade outer platform wiper plate preform, or - a second portion constituting a preform of a blade anti-tilting wall, said blade preform then lacking a blade inner platform preform, and - a third portion constituting the preform of a blade outer platform spoiler plate, said blade preform then lacking a blade outer platform wiper plate preform, or constituting a preform of a blade outer platform wiper plate, said blade preform then lacking a blade outer platform spoiler plate preform, - a first portion constituting a preform of an airfoil and a blade root, - a second portion constituting a preform of a blade inner platform, said blade preform then lacking a blade anti-tilting wall preform, or constituting of a blade anti-tilting wall preform, said blade preform then lacking a blade inner platform preform, and - a third portion constituting a preform of a blade outer platform spoiler plate, said blade preform then lacking a blade outer platform wiper plate preform, or - a second portion constituting a preform of a blade anti-tilting wall, said blade preform then lacking a blade inner platform preform, and - a third portion constituting the preform of a blade outer platform spoiler plate, said blade preform then lacking a blade outer platform wiper plate preform, or constituting a preform of a blade outer platform wiper plate, said blade preform then lacking a blade outer platform spoiler plate preform, - densification of the preform by a matrix to obtain a blade made of composite material having a fiber reinforcement consisting of the preform and densified by the matrix, and constituting a single part with two of the following elements: blade inner platform, blade anti-tilting wall, blade outer platform spoilers or with two of the following elements: blade anti-tilting wall, blade outer platform spoilers and blade outer platform wipers.