A Chinese halberd, also known as a "ji" or "ge" in Chinese, is a polearm weapon that originated in ancient China. It is characterized by its long shaft and a distinctive blade mounted at the end. The blade of a Chinese halberd typically combines features of an axe, a spear, and a hook.

The construction of a Chinese halberd usually consists of the following components:

1. Shaft: The shaft of a Chinese halberd is a long pole made of wood or bamboo. It provides the length and leverage needed for effective use of the weapon.
2. Blade: The blade of a Chinese halberd is mounted at the top end of the shaft. It is a broad, flat blade that is wider at the tip and tapers towards the base. The blade often has a curved shape, resembling a traditional Chinese moon blade, and can vary in size and design.
3. Hook: Attached to the backside of the blade is a hooked spike or prong known as the hook. The hook allows for additional offensive and defensive techniques, such as hooking an opponent's weapon or pulling down shields.

Chinese halberds were historically used by infantry units in Chinese armies, offering versatility in combat with their combination of cutting, stabbing, and hooking capabilities. They were effective weapons for both offensive and defensive maneuvers, allowing soldiers to engage opponents at various distances. Chinese halberds are still used today in traditional martial arts practices and demonstrations.