We study the distribution of magnetization in the presence of dislocation in 2D antiferromagnets. We propose a two-dimensional model generalizing the Peierls model to the case of coupled fields of magnetization and elastic displacement distribution. In the framework of this model we obtain a system of 1D nonlinear integral-differential equations which has the solutions for domain wall with magnetic vortex and a complex magnetostructural defect representing domain wall which ends at the dislocation.