A discerning tag for wireless frequencies includes a first body and a second body combined together. The first body is composed of an upper board and a lower board, and the upper board has a through hole in the center. A plurality of support boards are provided between the upper board and the lower board so that an accommodating hollow space is formed surrounded by the upper board, the lower board and the support boards. The lower board consists of a base layer and a cover layer positioned on the base layer, and a wireless frequency discerning system is deposited on the base layer, which is then combined integral with the first body by means of a molding method, with the wireless frequency discerning system sandwiched between the base layer and the cover layer. The base layer is further provided with a position hole.The second body is made of a board, having a post extending down from the center of a lower side and a recess formed in an upper surface just above the post. The post is provided with a reversed cone formed in a lower end and an annular groove just on the reversed cone. The reversed cone has a height smaller than that of the hollow space of the first body, and the diameter of the post is larger than that of the through hole of the first body.In combing the first body with the second body, the post of the second body is inserted in the through hole of the first body, and remains in the hollow apace of the first body, with the annular groove of the post first fitted in the upper board so as to prevent the first body from separating from the second body, in addition to prevent the combined strength from becoming too large, with the reversed cone of the second body not pressing the lower board of the first body to damage the wireless frequency discerning system.本發明為無線射頻辨識耳標,至少包含:第一本體,設上層板與下層板,前述上層板之中間適當位置設貫穿孔,前述上層板與下層板之間設複數支撐板,利用上層板、下層板與支撐板以形成一容置空間;前述下層板設基層與包覆層,基層之一側設有無線射頻辨識系統,且基層於適當位置設有定位孔,前述設有無線射頻辨識系統之基層,利用模內成型技術,使設有無線射頻辨識系統之基層一體成型於第一本體中,並將無線射頻辨識系統包覆於基層與包覆
