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COVID-19 is a significant worldwide health concern. The exaggerated immune response known as the "cytokine storm" is a key factor in this illness, and there are potential ways to address it. Janus kinase (JAK) inhibitors are a type of medication that might reduce inflammation and improve the body's production of antibodies. Pharmacokinetic profiles, toxicity characteristics, biological activities prediction, and molecular docking simulation will be conducted to discover, assess, and investigate the molecular interactions of Christinin compounds, including Christinin-A, Christinin-B, Christinin-C, and Christinin-D derived from Ziziphus spina-christi leaves as Janus kinase (JAK) inhibitors using bioinformatics approaches. Based on the molecular docking simulation, it can be concluded that the Christinin compound has a molecular interaction with Janus Kinase (JAK). However, Christinin-A and Christinin-C compounds have better affinity than Christinin-B and Christinin-D compounds, with binding free energy values of -7.59 kcal/mol and -5.37 kcal/mol, respectively. Therefore, these two compounds can be used as candidates for Janus Kinase (JAK) inhibitors in preventing hyperinflammation in the COVID-19 infectious disease. [ABSTRACT FROM AUTHOR]