The utility model discloses an on - -spot metallography detects special chemical case, including the medicine box, the medicine box includes box and case lid, the box rotates with the case lid to be connected, the box intussuseption is filled with rigid cellular plastics, the last design of rigid cellular plastics has a plurality of special grooves, the design has the handle on the case lid. Through pack rigid cellular plastics in the box, at rigid cellular plastics various special grooves of design and corresponding reagent bottle for it is more convenient that instrument and chemical carry, and the medicine is distinguished easily, moreover the medicine problem that can not take place to pour, through designing into the fillet in 8 angles with the medicine box, and on the fillet parcel stainless steel iron sheet, not only guarantee the firm of medicine box, safety in the time of guaranteeing to carry again.