The invention relates to an alternative multi-sound-head wireless handheld color Doppler ultrasound instrument, which comprises an ultrasound module, a battery, an antenna body, a WIFI (Wireless Fidelity) module, a power supply module, an upper casing and sound heads, wherein the connection among the sound heads, the upper casing and the ultrasound module is dismountable connection; and the sound heads comprise an abdomen probe, a vaginal intracavity probe, a superficial organ probe and a cardiac probe for alternative purposes. The connection mode between each sound head and the ultrasound module is converted from a conventional fixed connection mode into a dismountable connection mode, so that different sound heads can be arranged on one ultrasound module; the examination can be performed through abdomen color Doppler ultrasound; the examination can also be performed through vaginal intracavity color Doppler ultrasound; the examination on mammary glands, thyroid glands, face organs, four limbs and the like can be performed through superficial organ color Doppler ultrasound; meanwhile, the applicability to special probes for cardiac color Doppler ultrasound and the like is also realized; and the requirements of examination of diseases in the cardiac aspect can be met.