The present invention relates to an ultrasonic probe injection device using RCM, the device enabling the insertion angle and the insertion depth of an injection needle of an injection unit to be easily adjusted using one hand, and the insertion angle and the insertion depth of the injection needle of the injection unit to be automatically fixed after adjustment, thereby having the merit of enhancing efficiency in operation, and even if the insertion angle of the injection needle of the injection unit changes, the insertion point reached when the injection needle of the injection unit is inserted is equally maintained, thereby having the merit of enabling a decrease in error with respect to a lesion area.
