The utility model discloses front-back face thin film inkpad which is provided with a thin film layer. The thin film layer comprises an isolating layer and a stamp-pad ink layer. The isolating layer is smooth and elastic and the stamp-pad ink layer is dipped in stamp-pad ink. The thin film layer is placed between one finger and paper. The finger presses the isolating layer, a fingerprint is stamped on the paper through the thin film layer, so that the fingerprint is stamped, and the finger is not stained. The thin film layer is clamped through two fixing rings, the fixing rings and the thin film layer are embedded in a fixing frame for fixation, finally the fixing frame is packaged, and the inkpad is taken out when needed.