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Chiral recognition exhibits the important practical significance. In this paper, the magnetic CuFe 2 O 4 @SiO 2 was firstly synthesized by co-precipitation. Then, the core-shell chiral nanomaterial CuFe 2 O 4 @SiO 2 -NALC (NALC = N -acetyl- L -cysteine) was futher prepared by reflow in a flask. It is worth mention that the chiral nanomaterials are obtained by simple synthetic methods and using inexpensive materials. Chiral recognition effect of CuFe 2 O 4 @SiO 2 -NALC on L -/ D -tyrosine was confirmed by UV-Vis absorption spectroscopy. CuFe 2 O 4 @SiO 2 -NALC is easy to separate due to the magnetic hull, which has great development prospects of the field of chiral separation. Chiral recognition exhibits the important practical significance. The core shell material CuFe 2 O 4 @SiO 2 was synthesized by co-precipitation and mechanical stirring method, the magnetic core-shell chiral nanomaterial CuFe 2 O 4 @SiO 2 -NALC (NALC = N -acetyl- L -cysteine) was prepared by reflow. It is worth noting that the chiral nanomaterials are obtained by using inexpensive materials and simple synthetic methods. The materials were characterized by X-ray diffraction (XRD), Infrared spectrophotometer (FT-IR), Scanning electron microscope (SEM), High Resolution Transmission Electron Microscopy (HRTEM),Energy-dispersive X-ray spectroscopy (EDS)and Value Stream Mapping (VSM). Chiral recognition effect of CuFe 2 O 4 @SiO 2 -NALC on L -/ D -tyrosine was confirmed by UV–Vis absorption spectroscopy, the strength of action of CuFe 2 O 4 @SiO 2 -NALC and L -/ D -tyrosine are different. CuFe 2 O 4 @SiO 2 -NALC is magnetic and easy to separate, and has great development prospects in the field of chiral separation. Image 1 • The synthesis of the magnetic chiral nanomaterial CuFe 2 O 4 @SiO 2 -NALC (NALC = N -acetyl- l -cysteine) was first reported. • The effect intensity of the tyrosine (Tyr) enantiomer is different in the environment of pH = 7 (H 2 O). In this manuscript, the bimetallic magnetic nanoparticles CuFe 2 O 4 is cheap, magnetic and easy to prepare, and can be separated by an external magnet. • In this manuscript, the bimetallic magnetic nanoparticles CuFe 2 O 4 is cheap, magnetic and easy to prepare, and can be separated by an external magnet. [ABSTRACT FROM AUTHOR]