The invention provides a high-precision multi-shaft automatic turning process of wood. The high-precision multi-shaft automatic turning process comprises the steps that firstly, one end of a rodlike wood workpiece is inserted between clamping corner blocks of a self-centering feeding mechanism, the clamping corner blocks are close to each other and do synchronous movement, and the rodlike wood workpiece is subjected to self-centering clamping; then a feeding motor drives a first supporting frame to slide close to a first sliding block along a feeding guide rod until the wood workpiece clampedby the clamping corner blocks is conveyed into the space between a first tip and a second tip, and the rodlike wood workpiece and the two clamping ends of a clamping mechanism are coaxial; then the clamping mechanism is started to operate, and the two ends of the rodlike wood workpiece are clamped; then the feeding motor is started to rotate reversely, a clamping motor is started to rotate reversely, and the self-centering feeding mechanism is reset; and finally, a spindle motor drives the rodlike wood workpiece to rotate at high speed, a transverse driving mechanism and a lifting driving mechanism cooperate to drive a turning tool to carry out feeding in the transverse direction and the longitudinal direction, and the rotary rodlike wood workpiece is cut through the turning tool.