A control method for an internal combustion engine supercharged by means of a turbocharger provided with a turbine and with a compressor; the control method contemplates the steps of: establishing at least one operating limit curve on a Reduced Mass Flow Rate/Compression Ratio map; establishing at least one intervention curve of a wastegate valve which adjusts a bypass pipe of the turbine on a Reduced Mass Flow Rate/Compression Ratio map; establishing at least one intervention curve of a Poff valve which adjusts a bypass pipe of the compressor on a Reduced Mass Flow Rate/Compression Ratio map; using the operating limit curve to limit the pressure target downstream of the compressor used by the engine control; controlling the opening of the wastegate valve if the intervention curve of the wastegate valve is exceeded; and controlling the opening of the Poff valve if the intervention curve of the Poff valve is exceeded.