Abstract: A flexible-pipe (10). for high pressure is provided with. a sublayer (11) made of natural or synthetic rubber or man-made polymers in general, and with a first and a second stiffening layer (12, 14), which are superimposed and both consist of a high-resistance metal spiral, whereby the spiral can have one or more wires. Between the first (12) and the second (14) layer there is interposed a skim coat (13) made of natural or synthetic rubber or man-made polymers in general. The flexible pipe (10) for high pressure is also coated with a coating (15) made of natural or synthetic rubber or man-made polymers in general.