The pathway and mechanism of boron(B) acquisition dependent on plant B transporters have been fully revealed，and the physiological response process of plant B deficiency has also been widely studied. In order to deeply explore the adaptability of plants to B deficiency and its potential mechanism，this review systematically summarizes the important research progress from three aspects：the plant B absorption and transport pathway，the physiological response of B stress and the adaptive regulation to stress by B，mainly including B absorption regulation，genetic improvement of B efficient plants，hormones and B stress and the importance of B in other stresses. It is expected to provide theoretical reference for B regulating plant stress adaptation and a way to achieve B efficient genetic improvement.