"Yj-91A" is divided into anti-radiation and anti-ship two models, the head structure varies with the missile model. The anti-radiation type head is equipped with a passive radar seeker and an anti-personnel blasting warhead, while the anti-ship type head is equipped with an active radar seeker and a semi-armor-piercing warhead.
In terms of size and tactical use, the "YJ-91" is very similar to the ANS missile currently being developed by France and Germany, it is certain that the "YJ-91A" anti-radiation missile is superior to the high-speed anti-radiation missiles such as the Mockingbird and Ham in service in the United States in terms of flight speed and lethality. It can effectively attack the AN /SPY-1 Aegis phased array guidance radar used by large surface ships such as the US Ticonderoga and Burke-class.