In the animated Disney film "Mulan" and various adaptations of the Mulan story, Mulan is often depicted using a variety of weapons, including a sword. The specific type of sword she wields can vary depending on the adaptation, but it is typically a Chinese straight sword known as a jian (or sometimes spelled "chien").

The jian is a traditional Chinese double-edged sword with a straight, slender blade. It is characterized by its balanced design, quick handling, and versatility in both cutting and thrusting techniques. The jian has a long history in Chinese martial arts and warfare, dating back thousands of years.

The portrayal of Mulan's sword in the Disney film aligns with the depiction of a jian. The jian's design complements Mulan's agile fighting style, allowing her to deliver precise strikes and utilize her skills in close-quarters combat.

It's worth noting that various adaptations of the Mulan story may showcase different styles of swords or weapons depending on the cultural and artistic interpretations of the creators. However, the jian is a common and fitting choice for Mulan's character, representing her martial prowess and embodiment of traditional Chinese martial arts.