The invention discloses special PPS (polyphenylene sulfide) plastic having good bonding property with an epoxy adhesive and a preparation method of the PPS plastic. The PPS plastic is prepared from the following raw materials in parts by mass: 50-80 parts of PPS resin as a main material as well as the following auxiliary materials: 10-50 parts of glass fiber, 1-5 parts of a silane coupling agent,3-15 parts of a flexibilizer, 0.3-3 parts of an antioxidant and 0.3-3 parts of a heat stabilizer. The special PPS plastic has the beneficial effects that the components are optimized, wherein a flexibilizer is optionally selected from anhydride modified ethylene thermoplastic elastomers, styrene thermoplastic elastomers and unsaturated epoxy copolymers, toughness and impact strength can be improved, polarity of the special PPS plastic and wettability of the special PPS plastic to the epoxy adhesive can also be improved, and accordingly, adhesion between the special PPS plastic and epoxy resinis improved, and requirements of the glue filling process are met; the content of the components is optimized, and mechanical properties and heat resistance of the special PPS plastic are improved.