The DY-90/TY-90 SHORAD is a short range ground-to-air missile defense system loosely based on the TY-90 air-to-air missile, and designed by the Chinese Company TY stands for Tian Yan (Tianyan).

The DY-90 is an infrared-homing short-range air-to-air missile. The missile is fitted with an infrared-homing seeker specifically designed to operate in near earth environments where the sources interference is strong. The missile is armed with a 3kg expanding rod HE warhead and a laser fuse, with a blast radius of 5m.

The launcher unit can be associated to the AF902 fire control radar which is equipped with an X-Band search radar, a C-Band Search/Tracking radar, a Ka-Band tracking radar and electro-optical system with TV tracking range, IR tracking range and laser range finder.

The missile also equips the Yitian anti-aircraft missile system mounted on the chinese WMZ 551 6×6 wheeled armoured personnel carrier.