The invention provides a continuous automatic processing production line for wood of furniture manufacturing. The production line comprises a feeding device, a cutting device, an output device, a clamping and feeding device and a waste separating device, wherein the clamping and feeding device is arranged between the feeding device and the cutting device, and comprises a wooden block positioning mechanism and a clamping and transporting mechanism; and the waste separating device is arranged between the cutting device and the output device, and comprises a separating workbench, a clamping staggering mechanism and a separating mechanism. After the clamping and feeding device clamps wooden blocks in a mode of reciprocating motion, the stepwise feeding and cutting are carried out in the cutting device; after the cutting of the wooden blocks is completed, the clamping and feeding device is fitted with the waste separating device to carry out the staggering separation of finished products and waste, so that the full-automatic cutting and the waste separating of the wooden blocks are realized; and in this way, an original manual wooden block feeding and cutting method is replaced, so thatthe problem that the leftward and rightward swaying of the wood results in irregular wood cutting surfaces and the imprecise cutting in the prior art is solved.