Live pupae monofilament length measuring and knot visible winding device

The invention discloses a live pupae monofilament length measuring and knot visible winding device, which is characterized by being provided with a rotary filament winding bobbin and a filament guide mechanism, wherein the filament winding bobbin comprises an inner cylinder, an upper end face, a lower end face and at least three supporting columns; the upper end face and the lower end face are connected with the inner cylinder; the supporting columns are connected with the upper end face and the lower end face; straight line connection between two adjacent supporting columns is separated from the outer wall of the inner cylinder; the outer wall of the inner cylinder is black, blue, brown, green or red by mounting special black rubber; the filament guide mechanism comprises a filament guide rod, a filament guide wheel and a rotary lifting screw; the filament guide wheel is connected to the filament guide rod; and the filament guide rod is connected with a screw of the lifting screw and is driven by the lifting