Improved spectrometer capable of being rapidly adjusted

The utility model relates to an improved fast adjustment spectrometer, which comprises an objective table, a reticle, a telescope and a double-sided mirror, the telescope is provided with an objective lens, a strip-shaped reference object is arranged between the telescope and the double-sided mirror, the strip-shaped reference object is horizontally arranged, the strip-shaped reference object is detachably connected to the objective lens of the telescope, the strip-shaped reference object is perpendicular to the optical axis of the telescope, and the objective lens of the telescope is connected with the double-sided mirror. The longitudinal section of the strip-shaped reference object is smaller than that of the telescope objective lens. As the bar-shaped reference object is arranged at the objective lens barrel of the telescope, an operator can use the position relation between the bar-shaped reference object and the reflected image of the bar-shaped reference object to carry out comparison reference when ad