The invention discloses a tumor body containing net for a carcinoid operation, comprising a net slice, a furling wire, a right closing wire, a left closing wire and a marker cloth slice. The tumor body containing net is characterized in that the furling wire penetrates through meshes at the lower margin of the net slice, the lower end of the left closing wire is fixed with the furling wire, the other end of the left closing wire penetrates through meshes at the left side margin upwards, and the marker cloth strip is fixedly sewn at the tail end of the left closing wire; the right closing wirepenetrates through meshes at the right side margin of the net slice downwards bypassing the furling wire, penetrates through upwards by an original way, and penetrates through outsides from the otherside when achieving the mesh at the topmost; and both ends of the right closing wire are connected. When being used, the invention bluntly strips the periphery of a tumor body, the lower margin of the net slice and the furling wire encircle the tumor body together for one circle, both ends of the furling wire are tensioned, knotted and fixed to lift up the left closing wire, the right closing wire and the upper margin of the net slice causing the net slice to form a tuck net type to contain the tumor body, and the tumor body can be cut by exposing the basal part through upward or one side traction. The invention has novel design, simple structure, convenient use and clear operative field, avoids damage of recurrent laryngeal nerves, prevents the tumor body from cracking, is convenient andrapid to take out a tumor, reduces intraoperative blood loss and shortens the operation time.