Abstract: A method for measuring mass inertia of moving surfaces, comprising the steps of: (a) Alignment of the center of gravity of an assembly (90) formed by the moving surface (50) and a support device (70) fastened to at least two joints (31, 32) in a rest position, this alignment comprising a reading in a comparing clock (40) and driving of an adjusting element arranged in the support device (70) for obtainment of a predetermined value in the comparing clock (40); (b) Measurement of the static moment of assembly (Mstatic) in an intermediate position through a dynamometer (60); (c) Measurement of the oscillation period of assembly (T) in a pendulum position through an accelerometer arranged in the support device (70) and (d) Reading of the static moment of assembly (Mstatic) and that of oscillation period of assembly (T) and obtainment of the inertial moment of the moving surface (Ihhsup)—An equipment (10) for measurement of mass inertia of moving surfaces, is further described, comprising: a structure (20) formed