The decoy comprises a decoy body and a combined shell. The false bait body includes a top surface, a bottom surface, a through top surface, a bottom bearing groove and a plurality of joints formed on the top surface. The combined shell is fixed in the bearing groove, and comprises a holding groove for loading fish luring objects and a connecting part of a plurality of butt joints. When the combined shell is installed in the bearing groove, the fish luring object is located in the bearing groove and emits light, sound or smell towards the upper and lower sides of the top and bottom surfaces.假魚餌包含假餌本體以及組合殼體。假餌本體包括頂面、底面、貫通頂面、底面的承載槽以及複數形成於頂面的結合部。組合殼體固定於承載槽內，組合殼體包括裝載誘魚物件的容置槽以及複數對接結合部的連接部。其中當組合殼體安裝在承載槽內時，誘魚物件位於承載槽，朝頂面及底面上下二側向外部發出亮光、聲響或氣味。
