The invention discloses a food-ordering 
system and method based on a 
handset Wechat. The 
system includes a plurality of user handsets on which Wechat 
software is installed, a Wechat 
server, a food-ordering-website 
WEB server and a plurality of merchant servers. The user handsets are connected with the Wechat 
server through networks respectively. The Wechat 
server is connected with the food-ordering-website 
WEB server. The food-ordering-website 
WEB server is connected with the merchant servers through networks. Each 
handset includes an 
information management module, a food-ordering module, an 
order management module, a 
meal-
list sending module and a settlement module. Each merchant server includes a menu management module, a 
user management module, an order process management module, a settlement module, an account-book module and a GPS 
wireless printer. The food-ordering 
system based on 
handset Wechat enables users to complete self-service food ordering and order placing through the handsets conveniently and rapidly so that not only is time saved for consumers, but the time to answer phone calls and introduce dishes to customers is also reduced for merchants so that 
service efficiency of the merchants is improved and costs for manufacturing menus and leaflets are reduced for the merchants.