The invention discloses an advanced monitoring device for a tunnel excavation surrounding rock whole process deformation curve and an implementation method thereof. The device comprises a steel tube elastomer, a height difference meter structure and embedded optical fibers, wherein the height difference meters form an equidistant series structure and are fixed in the steel tube; the embedded optical fibers are packaged in grooves on the surface of the steel tube; the height difference meters, the embedded optical fibers and the steel tube form a deformation coordination structure, and throughcalculating height difference changes and optical fiber deformation conditions, the surrounding rock deformation can be calculated. The implementation method comprises steps of drilling, steel tube mounting, height difference meter assembling, embedded optical fiber packaging and borehole sealing and grouting. The deformation curve of the surrounding rock in front of the tunnel excavation face canbe tested and calculated, which provides support for dynamic design, construction and safety of the project.