To provide a wood spring bed which achieves excellent elasticity for sufficient comfortableness obtained during the sleeping period while facilitating the disassembling or mounting of the wood spring.

A support member 7 of the wood spring 5 has the wood spring 5 and left and right fitting recessed parts 6, a link plate part 6a for linking the fitting recessed parts 6 and 6, a mounting base plate 9 and a pair of right and left curved arm pieces 11 deflectable vertically. A positioning boss part 15 and a shaft part 20 are formed on the mounting base plate 9 and a positioning hole part 16 and an engaging hole 21 are formed on a base plate 8. In the mounting of the support member 7, the positioning boss part 15 and the shaft part 20 are inserted into the positioning hole part 16 and the engaging hole 21 and a clip 30 is retained on a mounting groove part 25 formed in the shaft part 20 to hold the support member 7 on the base plate 8 being kept from slipping off.