The invention relates to an electronic weigher which comprises a weight sensor used for obtaining a weight
analog signal of a weighed object, an A / D conversion circuit used for converting the
analog signal into a
digital signal, a processor used for calculating the weight of the weighed object according to the
digital signal, an
identity recognition module that is connected with the processor as well as can obtain and send user identity information of the weighing operator, a weighed object information input module used for inputting parameter value information of the weighed object, and a
wireless communication module used for receiving the information sent by the processor and sending the information into a
terminal server, wherein the weight sensor, the A / D conversion circuit, the processor, the
identity recognition module, the weighed object information input module and the
wireless communication module are connected with each other; the processor is also used for sending the user identity information, the
weight value of the weighed object and the parameter value information thereof into the
wireless communication module after receiving the user identity information sent by the
identity recognition module. The identity recognition module of the electronic weigher can be used for distinguishing the identity of operators, and the electronic weigher can print a two-dimensional bar code
label of the products in the course of dealing, thus providing hardware support for setting up an agricultural
product traceability system.