Followed by the accuracy of the industry does not have a recognized standard. And these devices do not have a communication interface, can not be carried out with the external device data transmission, which is not conducive to the storage and processing of data. In view of the advantages and disadvantages of the current market electronic blood pressure meter, hardware structure and the software of the electronic sphygmomanometer is designed, in order to improve the shortage of the current electronic sphygmomanometer, meet the demand of the market