High-stability saw blade of multi-blade saw

The utility model relates to the technical field of saw blades, in particular to a high-stability saw blade of a multi-blade saw. Comprising a spindle and cutting devices. The cutting device comprises a mounting piece, a fixing block, a threaded sleeve, a connecting piece, a saw blade body and a locking piece, one side of the saw blade body is fixed through the fixing block, the pressure between the connecting piece and the saw blade body is increased by screwing the connecting piece, then the saw blade body is clamped between the connecting piece and the fixing block, and the saw blade body is fixed through the locking piece by disassembling the connecting piece. The saw blade bodies can be replaced, the saw blade bodies are driven to move on the main shaft through sliding connection of the mounting piece and the main shaft, the positions of the multiple saw blade bodies can be adjusted, the pressure between the locking piece and the main shaft is increased by tightening the locking piece, and the fixing blo