Recovery system and method of wind power blade sandwich material

The invention relates to a recycling system and method for a wind power blade sandwich material. The system comprises a detecting and positioning mechanism, a metal removing mechanism, a cutting, marking and sorting mechanism and a core material separating mechanism. The detection positioning mechanism is configured to be capable of obtaining the position of a metal piece in the blade and obtaining distribution parameters of balsa wood and PVC foam; the metal dismantling mechanism is configured to dismantle metal parts in the blade according to the parameters obtained by the detecting and positioning mechanism; the cutting and lineation sorting mechanism is configured to mark and lineate the balsa wood and the PVC foam in the blade after passing through the metal removal mechanism on the blade, and can cut and separate the blade into balsa wood blade blocks and PVC foam blade blocks along marking lines; and the core material separating mechanism is configured to strip the balsa wood in the balsa wood blade bl