The invention is a double-layer detection test piece, which is formed on a substrate by stacking a double-layer metal material to form a pattern layer for conducting signals. The pattern layer includes a palladium layer and a gold layer. Among them, the gold layer can be in the form of A-shaped or A-shaped. The whole system has better accuracy and stability, and the production is more simple and rapid.本創作為一種雙層檢測試片，係在一基板上以堆積雙層的金屬材料而形成一用於傳導訊號之圖案層，該圖案層包括一鈀層與一金層。其中，金層可呈一字型或ㄇ字形。整體具有較佳的精確性與穩定性，生產製作更為簡易迅速。
