The invention discloses a full-automatic sawing, milling and edge sealing production line of an all-bamboo board or a bamboo-wood composite board. The production line comprises a PLC operation control cabinet, and the following parts which are controlled through the PLC operation control cabinet in a centralized manner: a board feeding mechanism, an automatic deviation-adjusting mechanism, an edge sawing machine, an edging returning machine, an edge milling and chamfering machine, a plastering and painting machine and a plate feeding trolley which longitudinally connected in sequence, and an edge sawing machine, an edging returning machine, an edge milling and chamfering machine, a plastering and painting machine and a board discharge mechanism which are transversely connected with the board feeding trolley. The production line has the following beneficial effects: full automatic control over an all-bamboo board or bamboo-wood composite board production line is performed through the PLC operation control cabinet; the operation of feeding, deviation rectification, edge sawing, edging returning, edge milling, chamfering, edge sealing and paint rolling of boards are realized, and then the boards are sent to the board feeding trolley, the operation of edge sawing, edging returning, edge milling, chamfering, edge sealing and paint rolling are performed on the other two sides of the boards, and finally, tidy stacking and discharge are performed. The production line has such advantages as small occupied production area, low labor intensity of workers, high production efficiency, low production cost and stable product quality.