Method of measurement of the acting forces and/or the temperature in at least one measurement region of a structure, wherein the method comprises: - a step of analysis of the structure in which vibration modes of the structure and resonance frequencies associated with the vibration modes of the structure are determined, characterized by - a design step after the step of analysis of the structure and before an addition step, in which an element (1, 2) to be added in each measurement region is designed, such that resonance frequencies of the element (1, 2) do not overlap the resonance frequencies of the structure, - the addition step in which the element (1, 2) is added to the structure in each measurement region, said addition generating in each measurement region at least one local vibration mode of the assembly formed by the structure and the added element (1, 2) or elements (1, 2), - a step of analysis of said assembly in which the variation of the resonance frequency associated with the local vibration mode of each measurement region upon a change in the acting forces and/or the temperature in said measurement region is determined, - an excitation step in which the assembly is excited by an emitter configured for emitting a signal, - a measurement step in which the variations produced in the resonance frequency of the assembly associated with the local vibration mode of each measurement region are measured by a receiver configured for receiving the signal emitted once it has been propagated through the assembly formed by the structure and the added elements (1, 2), exciting at least one of the local modes generated in the assembly as a consequence of the addition of the elements (1, 2), the receiver being also configured for measuring the variations both in frequency and in phase and/or amplitude produced in the resonance frequency associated with said at least one local mode of the assembly, and - a calculation step in which, based on the measurements obtained in the measurement step, the acting forces and/or the temperature of the structure in the measurement regions are determined. - a step of analysis of the structure in which vibration modes of the structure and resonance frequencies associated with the vibration modes of the structure are determined, characterized by - a design step after the step of analysis of the structure and before an addition step, in which an element (1, 2) to be added in each measurement region is designed, such that resonance frequencies of the element (1, 2) do not overlap the resonance frequencies of the structure, - the addition step in which the element (1, 2) is added to the structure in each measurement region, said addition generating in each measurement region at least one local vibration mode of the assembly formed by the structure and the added element (1, 2) or elements (1, 2), - a step of analysis of said assembly in which the variation of the resonance frequency associated with the local vibration mode of each measurement region upon a change in the acting forces and/or the temperature in said measurement region is determined, - an excitation step in which the assembly is excited by an emitter configured for emitting a signal, - a measurement step in which the variations produced in the resonance frequency of the assembly associated with the local vibration mode of each measurement region are measured by a receiver configured for receiving the signal emitted once it has been propagated through the assembly formed by the structure and the added elements (1, 2), exciting at least one of the local modes generated in the assembly as a consequence of the addition of the elements (1, 2), the receiver being also configured for measuring the variations both in frequency and in phase and/or amplitude produced in the resonance frequency associated with said at least one local mode of the assembly, and - a calculation step in which, based on the measurements obtained in the measurement step, the acting forces and/or the temperature of the structure in the measurement regions are determined.