Self-deployable carbon fiber reinforced composite(CFRP) boom was prepared by CFRP hinge, CFRP tube and aluminium alloy mounts. The CFRP hinge was laminated from T300/epoxy thin prepreg with bi-lenticular configuration. Deploying moment, natural frequency and deployment properties were characterized. The deploying moment and power to weight ratio of the hinge were 372.8 N·mm and 13.3 W/kg respectively. The natural frequency and pointing accuracy were 4.25 Hz and 0.08°,respectively.