Apple (Malus domestica) is a kind of large fruit of Rosaceae. It is not only the most important fruit in China, but also the most widely planted and most productive fruit tree in the world. In the process of apple tree cultivation and production, it is easy to suffer from a variety of abiotic stresses and cause economic losses to fruit farmers. Auxin receptors (TIR1/AFBs) are key components of auxin signal transduction pathway, and the F-box protein subunits encoded are involved in the formation of E3 ubiquitin ligase SCF^TIR1/AFBs complex. At present, the auxin receptor family of apple has not been clarified, and the mechanism of auxin receptor components in apple participating in abiotic stress is less studied.