The utility model discloses a crabapple hedgerow modeling auxiliary device and belongs to a hedgerow modeling device. The crabapple hedgerow modeling auxiliary device comprises a bottom frame (1) and a top frame (2), the top frame (2) is fixed on the bottom frame (1), a framework is respectively arranged on the bottom frame (1) and the top frame (2), and a plurality of bolts (3) are arranged at the bottom of the bottom frame (1). According to the crabapple hedgerow modeling auxiliary device, the bottom frame and the top frame are mutually fixed for crabapples to depend on for growing so that the crabapples can grow according to the model of the auxiliary device, and the modeled crabapples can be wholly transplanted and are convenient to carry. Simultaneously, the crabapple hedgerow modeling auxiliary device is simple in structure and can be used as a modeling auxiliary device for various crabapple-like hedgerow plants except the crabapples so that the application ranges are wide.