The invention discloses a bobber thread cutting machine. The bobber thread cutting machine comprises a bobber thread cutting machine body. The bobber thread cutting machine body is composed of storage troughs, a fetching clamping jaw, a fetching cylinder, a tool lifting motor, a fetching module, a tool angle deflecting motor, a fetching module motor, a Y-axis retracting sliding rail, a conveying clamping jaw, a Y-axis retracting motor, a rotating mechanism, an electric box PLC, a locking cylinder, a cutting carrying tray and a rotating motor. According to the bobber thread cutting machine, a single-chip microcomputer is used for control, full-automatic numerical-control thread cutting is achieved, operation is convenient, and working efficiency is improved while labor intensity is relieved; a servo motor is used for control, so that the control precision is high, and personal errors are reduced; and in addition, the bobber thread cutting machine is reasonable in design, simple in structure and convenient to operate.