A needle cover including a cover main body including a needle introduction part and a needle introduction part. An opening is formed on a bottom side of the needle introduction part, and the needle protection part includes first and second needle protection parts on respective top and bottom sides. An opening is formed between the bottom side of the first needle protection part and the top side of the second needle protection part, and the first needle protection part and the second needle protection part are connected on the base side by a needle protection part connection unit and include a terminal opening on the terminal side. On the base side, a wing-fixing unit is formed on the first side and the second of the second needle protection part, and a locking part of the wing-fixing unit is formed on the terminal side.
