The invention discloses a miniaturized broadband dual-polarized magnetoelectric dipole millimeter wave edge-emitting antenna and an array thereof. The edge-emitting antenna comprises a top metal layer(1), a first dielectric layer (2), a second metal layer (3), a second dielectric layer (4), a third dielectric layer (5), a third metal layer (6), a fourth dielectric layer (7), a fifth dielectric layer (8) and a bottom metal layer (9) which are sequentially arranged from top to bottom. A size of a transverse electric dipole is reduced through a longitudinal bending structure, miniaturization isfurther achieved, meanwhile, a dual-polarized antenna array composed of the antenna is also provided, and a millimeter wave antenna and an array structure which are wide in impedance bandwidth, low incomplexity feed structure, low in feed profile and easy to directly integrate in two polarization directions are achieved. In the invention, more than 50% of dual-polarization impedance bandwidth canbe obtained, an in-band gain fluctuation is also lower than 3dB, and a stable directional diagram is provided.