In a dielectric filter (1) for base station communication equipment, a rectangular solid dielectric block (2) is provided with a plurality of ¼ wavelength resonators (3A1-3A4; 3B1-3B4), which are arranged along side planes (2c,2d) of the dielectric block and extend in parallel to each other and to the side planes (2c,2d). The dielectric block (2) is composed of dielectric ceramics having a relative dielectric constant of 5-20, and a size (H) in a direction orthogonally intersecting with the side planes (2c,2d) of the dielectric block (2) is 10-30 mm.