The inositol phosphate kinase family plays a central role in eukaryotic signaling and metabolic regulation， and critical functions in plant growth， development， and environmental adaptation. This family includes members such as inositol polyphosphate kinase（IPK2）， inositol pentakisphosphate 2-kinase（IPK1）， inositol 1，3，4-trisphosphate 5/6-kinase（ITPK）， and diphosphoinositol pentakisphosphate kinase（VIH）， which collaboratively catalyze the synthesis of inositol hexakisphosphate（InsP6） and its derivatives to establish complex phosphorylation networks. This paper systematically reviewed the classification characteristics， metabolic pathways， and biological functions of inositol phosphate kinases in plants， with a specific focus on their central roles in mediating phytic acid biosynthesis， phosphorus signaling， and stress responses. Significant progress has been made in elucidating metabolic pathways and identifying the functions of key signaling molecules. However， substantial knowledge gaps remained regarding the regulatory mechanisms of kinase substrate selectivity and the molecular basis of signaling networks. Additionally， there was a lack of highly sensitive in situ detection techniques for dynamically tracing the distribution of inositol pyrophosphates. In terms of applications， manipulating inositol phosphate metabolism showed potential for improving seed phytic acid content and phosphorus utilization efficiency， yet achieving precise regulation remained a current bottleneck. Future research should integrate cutting-edge technologies such as multi-omics， structural biology， and synthetic biology to further elucidate the underlying mechanisms. This will provide theoretical support for developing crop varieties with high yield， stress resilience， and enhanced phosphorus use efficiency， thereby contributing to agricultural sustainability and ecological conservation， and offering new theoretical foundations and practical breeding strategies to address global food security challenges.
