A polynomial guidance law that takes into account the constraints on impact angle，impact speed and seeker’s field-of-view （FOV） is proposed for the issue of air-to-ground missile attacking the moving ground target in a two-dimensional scenario.Based on polynomial shaping theory，the line-of-sight （LOS） angle between the missile and the target is formulated as a polynomial function of the relative distance.An algebraic relationship for the polynomial coefficients is derived by using the boundary conditions such as the impact angle constraint.To address the impact speed constraint，the unknown polynomial coefficient is designed as a control parameter and is updated using an iterative learning method，thereby generating a nominal guidance command.Considering the limitation imposed by the FOV angle constraint of seeker，a safe set is established using the control barrier function method.An optimization problem is formulated to adjust the nominal guidance command，ensuring that the seeker’s FOV remains within the constrained boundary throughout the engagement.Numerical simulations demonstrate that the proposed guidance law can be used to guide the missile to the target while satisfying the constraints on impact angle，impact speed and seeker’s FOV.