Disclosed is a puncture enhancement method, comprising: when a ultrasonic probe (10) emits ultrasonic waves with a large deflection angle for scanning during this cycle so as to display a puncture needle (20) image in an enhanced mode, several ultrasonic waves of a specific waveform with different emission angles are emitted for scanning the insertion orientation of the puncture needle (20) is recognized according to the scanned image frame data corresponding to the ultrasonic waves of the specific waveform at several different emission angles when the ultrasonic probe (10) emits ultrasonic waves with the large deflection angle in the next cycle, the corresponding large deflection angle is adjusted according to the recognized insertion orientation of the puncture needle (20) and the emission direction of the ultrasonic waves is perpendicular to or approximately perpendicular to the recognized insertion orientation of the puncture needle (20) under the large deflection angle. Also disclosed is a puncture enhancement system. The method and system can rapidly detect the insertion orientation of the puncture needle, and hence the insertion direction of the puncture needle does not need to be fixed. Meanwhile, the complexity of puncture enhancement manipulation is reduced through automatically adjusting the large deflection angle of the ultrasonic probe, so that the optimal display effect of the puncture enhancement image is always maintained.Linvention concerne un procédé damélioration de ponction, selon lequel : lorsquune sonde à ultrasons (10) émet des ondes ultrasonores ayant un grand angle de déflexion pour un balayage pendant ce cycle de manière à afficher une image daiguille de ponction (20) en mode amélioré, plusieurs ondes ultrasonores dune forme donde spécifique avec différents angles démission sont émises pour le balayage lorientation dinsertion de laiguille de ponction (20) est reconnue selon les données de trame dimage scannée correspondant aux ondes ultras
