The invention relates to a portable lead ion concentration analysis meter with a disposable sensor, which is used for the detection of lead ion concentration in blood or urine. The analysis meter comprises a detecting instrument, a disposable sensor and a correction card, wherein the detecting instrument is provided with a sensor interface, a correction card interface, a display screen, buttons, and a communication serial port which needs to be connected with a computer; the disposable sensor comprises a substrate, working electrodes, auxiliary electrodes, reference electrodes, insulating layers and covering resins, the working electrodes, the auxiliary electrodes and the reference electrodes are positioned on the substrate, and the covering resins are positioned on the insulating layers positioned on the electrodes; and the correction card is used for correcting parameters detected by the detecting instrument. The invention has the advantages that the analysis meter can automaticallycomplete the processes of parameter setting, collection, dissolution, data collection, background correction, characteristic potential judgment, concentration calculation, sensor correction, result display, and the like which are needed by the entire detection, thus the analysis meter avoids the error caused by human elements during the detection process of the traditional electrochemical method;and besides, the analysis meter has cabinet configuration and low cost and is suitable for basic medical institutions.