The invention relates to a polyphenylene sulfide complex fiber and a method for producing the same. The complex fiber is provided with a skin layer and a core layer, wherein the skin layer contains polyphenylene sulfide, the core layer is thermoplastic resin, the cross section of the skin layer is a special cross section, and the skin layer is provided with 3 to 8 protruding parts extending to the outside of the complex fiber. The production method adopts a composite spinning method which comprises the steps of melt preparation, spinning, stretching and post treatment, and adopts a composite spinning component. A spinneret plate of the composite spinning component is provided with spinneret orifices with the same shape of the cross section. The special structure of the complex fiber increases the specific surface area on the one hand and increases the quantity of filtering pores so that a filtering product produced from the polyphenylene sulfide fiber has higher filtering efficiency and good filtering effect; and on the other hand, the special structure controls the quantity of the protruding parts within 8 so that matters such as dust on the filtering product can be removed easily. Besides, due to adopting the skin core structure, the cost of the polyphenylene sulfide complex fiber is reduced.