The invention discloses a controllable antenna module, which comprises a three-dimensional printing substrate, a flexible substrate, a dual-frequency dipole antenna, a first reflector, a second reflector, a third reflector and a fourth reflector. The flexible substrate is bent according to four bending lines so that the first portion, the second portion, the third portion and the fourth portion ofthe outer peripheral region surround the antenna region and are attached to the three-dimensional printing substrate. Two half-wavelength dipole antennas with the same polarization direction are generated by setting the antenna region in the dual-band dipole antenna. The first reflector provided in the first portion is a half-wavelength reflector of the first dipole unit when the first diode thereof is turned on. The second reflector provided in the second portion is a half-wavelength reflector of the second dipole unit when the second diode thereof is turned on. A third reflector identical to the first reflector is provided in the third portion. A fourth reflector identical to the second reflector is provided in the fourth portion. Thus, the cost of the radiation field type controlled stereo antenna is effectively balanced with the elasticity of the product design.