Pier

The pier comprises a lower pier column and an upper fork column, the lower pier column comprises a main body column, a cavity with an open top is formed in the upper portion of the main body column, the upper fork column comprises a plurality of supporting columns, a connecting plate and positioning rings, the supporting columns are fixed to the top of the connecting plate, the positioning rings are fixed to the bottom of the connecting plate, and the upper fork column is arranged above the lower pier column. The connecting plate is supported at the upper end of the main body column, and the positioning ring is inserted into the cavity and is in positioning fit with the cavity through a positioning structure to limit the upper fork column to rotate around the central axis of the lower piercolumn relative to the lower pier column. According to the bridge pier, when the upper fork column and the lower squat column are connected, the upper fork column and the lower squat column can be inserted into the cavity in