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A slotline-fed wideband filtering dipole with tuneable radiation nulls is presented in this paper. The proposed wideband filtering dipole is fed by the microstrip-slotline crossjunction. On account of the open-circuit fed-transmission-line structure (OFTL) loaded on the extending line of microstrip-slotline cross-junction, the wideband dipole generates two radiation nulls distributed at the lower and upper fringe of the operating band. The OFTL structure not only bring the filtering response but also can move the two radiation nulls simultaneously and keep the in-band radiation performance unchanged. To validate the proposed approach, the wideband filtering dipole is fabricated, and the measured results are consistent with simulated results. The impedance bandwidth of the proposed antenna is 22.4% (3.49-4.37 GHz), and the gain within passband is about 2.7 dBi. Moreover, the out-of-band radiation suppression levels are more than 20 and 10 dB within lower stopband (2.21-2.88 GHz) and upper stopband (4.92-5.78 GHz), respectively.