Abstract: A safety protective needle cover for butterfly needle assembly is disclosed. After the covering member is pivoted toward the base, the base may be covered by an accommodating space defined by the backs of the two pivoting walls and the concave cover such that the covering member and the base are parallel with each other. The needle will not be shifted due to the shake of the patient or being hooked by dress. After the covering member is pivoted toward the vertical portion of the L-shaped needle, the vertical portion of the L-shaped needle may be covered by the concave cover to prevent nursing staff or users from being stuck.