Abstract: In these studies, a single crystal has been implemented of a novel for L-Lysine mono hydrochloride (L-LMHCl) with Citric Acid (CA) situated by solution growing process for normal temperature. Implemented samples are considered through the XRD from the lattice parameters have been operated to calculate the sample approve groups of the crystal units. The in implementation of the sample conform to absorption studies are analysed of FTIR, TG-DTA, UV, dielectrics have been discussed of the growing crystal. The structure of L-LMHCl-CA has been established by single-crystal XRD analysis. A LLMHCl-CA the efficient sample is identified the FTIR supernatural investigation. The UVvis. spectra expose to functional group documentation and optical property of the established a crystal. Thermal analysis is achieved to learning with current constancy to grown up samples. The numerous incidences are dielectric (constant & loss) and temperatures is achieved on L-LMHCl-CA single crystal by slow evaporation development.