The invention provides an optical imaging device, which includes: an input unit, adapted to receive lens category information that is inputted; a storage unit, adapted to store at least one lens control model; and a control unit, adapted to select, according to the lens category information that is inputted from the input unit, a corresponding lens control model from the storage unit, and to apply to a lens a control signal which control signal corresponds to a current status of the lens. The invention also provides a lens control method and apparatus. The optical imaging device of the invention can control and adjust various categories of lenses, thus effectively avoiding the problem of iris hunting.