A system for anti-spoofing breath analysis, which includes a breath analysis device and a user identification device, is provided. The breath analysis device detects breath data of a user, and transmits a beacon signal. The user identification device captures an image of a Field Of View (FOV), and determines whether the user appears in the image, and whether the beacon signal is received within the range of the FOV. In response to the user appearing in the image and the beacon signal being received in the range of the FOV, the user identification device allows the user to blow into the breath analysis device to generate the breath data and determine the user’s identification according to the image.一種防止偽造之呼吸檢測系統，其具有呼吸檢測裝置、以及身分辨識裝置。呼吸檢測裝置偵測使用者之呼吸數據，以及傳送信標訊號。身分辨識裝置以一視域擷取影像，根據影像決定使用者是否位於視域之範圍內，決定是否在視域之範圍內接收到信標訊號，以及當使用者位於視域之範圍內、以及在視域之範圍內接收到信標訊號時，允許使用者對呼吸檢測裝置進行吹氣以產生呼吸數據並根據影像決定使用者之身分。
