A capture and detection dermatophagoides pteronyssinus device, at least have a substrate, an adhesive layer and an image capturing device. Wherein the adhesive layer is disposed above the substrate, and finally use the image capture device to capture the image of adhesive layer, and to do color process for the image and then remove the background of the image, and then find out and count the number of dermatophagoides pteronyssinus, Wherein the adhesive layer and the dermatophagoides pteronyssinus will be mutual contrast colors.一種捕捉及檢測塵蟎裝置,至少包括一基材、一黏著層以及一影像擷取裝置。其中,該黏著層設置於基材上方,然後利用該影像擷取裝置來擷取該黏著層的影像,並針對該影像進行色階的處理,再去除該影像的背景,進而找出及統計塵蟎的數量。其中該黏著層會與塵蟎呈現出相互對比的顏色。1‧‧‧捕捉及檢測塵蟎裝置11‧‧‧基材12‧‧‧黏著層121‧‧‧誘餌2‧‧‧影像擷取裝置21‧‧‧影像分析辨識軟體