The QW-series (simplified Chinese: 前卫; traditional Chinese: 前衛; pinyin: Qian Wei)[1] are man-portable air-defense systems (MANPADS) developed by the People's Republic of China.

It uses a dual-band passive infrared seeker, the target plume and skinning two heat detection.

The QW-18A features electric-servo control actuators to increase guidance and flight characteristics.

QW-19 is an upgrade of QW-19, featuring a new digital seeker and a contact-proximity fuse with four control fins (instead of two on QW-18).

It supports initial guidance mode, and the shooter can engage the targets by directly aiming.