Using Cetyltrimethylammonium Bromide (CTAB) as template and bromine source ?by adding MXene (Ti3C2), Ag3PO4-decorated AgBr nanowires/Ti3C2 (Ag3PO4-AgBr NW/Ti3C2) composites were synthesized by co-precipitation method. The microstructure, crystal structure, elemental composition, optical absorption and photocarrier recombination of Ag3PO4-AgBr NW/Ti3C2 were characterized by SEM, TEM, XRD, XPS, uv-vis diffuse reflectance spectra and fluorescence spectra. The effect of 1% Ti3C2 dispersion on the photocatalytic degradation of Rhodamine B (RhB) by Ag3PO4-AgBr NW/Ti3C2 was investigated. The results showed that the layered-shaped Ti3C2 were dispersed around AgBr nanowires and Ag3PO4 nanoparticles decorated them, thus forming the double-heterostructure of Z-scheme and Schottky. Ag3PO4-AgBr NW/Ti3C2-5 prepared by adding 0.5 g Ti3C2 dispersion with 1% mass fraction had the best performance of photocatalytic degradation of RhB. The photocatalytic degradation rate of RhB (30 mL, 10 mg/l) was 94.4% by Ag3PO4-AgBr NW/Ti3C2-5 (30 mg). The ·OH radicals and ·O2? was the main active species in the photocatalytic degradation of RhB by Ag3PO4-AgBr NW/Ti3C2. The Z-type and Schottky double heterojunction formed between AgBr, Ag3PO4 and Ti3C2 promoted the separation efficiency of photogenerated electron-hole pairs (e-h+) and enhanced the photocatalytic performance of Ag3PO4-AgBr NW/Ti3C2.