Understanding the crystallographic phase stability and solid – state new phases as well as their functions of materials under shock wave loaded conditions always generate a great deal of special enthusiasm among the researchers due to the emergence of lots of known and unknown behaviors of materials. Hence, such kind of shock recovery experiments is becoming one of the most promising research areas in materials science branch. In the present course of work, we have made systematic investigation for the assessment of crystallographic phase stability of β-L-Glutamic acid crystal under shocked conditions employing X-ray diffraction technique. From the diffraction measurements, it has been observed that the test materials turn from a lower crystalline nature to a higher crystalline nature due to the occurrence of dynamic recrystallization and reduction of structural complexity of the title material. Based on the diffraction assessments, it is confirmed that the test sample has not undergone any crystallographic phase changes even though it has several polymorphs.