To solve problem that monitoring datas of crop-growth environment lack of security guarantee in the collection and transmission process

propose a security scheme which uses RS—485 bus to isolate the unsafe factors of Zig Bee network

and transmit data based on SSL protocol

and on the server terminal

non-blocking and I / O multiplexing expansion has been done to the SSL secure connection. Research results show that the proposed security scheme can effectively avoid the leakage of gateway authentication information and data protocol format

and the server has stable concurrent processing capability and data throughput rate.