The invention discloses a 
delay and 
energy consumption joint optimization MEC computing unloading method, and aims to solve the problems that in computing unloading of multiple users to multiple servers of an MEC, 
server resources are scrambled by unloading requests of the users, optimal unloading occurs, the effective 
utilization rate of the resources is low, the unloading 
service quality is poor and the like. According to the method, 
delay and 
energy consumption serve as constraints, an unloading 
cost evaluation model is constructed and calculated, in order to determine an unloading target, a 
server selection operator is designed, a 
server meeting task 
response delay is preferentially selected to execute unloading calculation, and an improved difference 
algorithm with 
response delay, 
energy consumption and 
server load serving as fitness functions is designed; an unloading decision with a low 
adaptive value is searched, and low-overhead and load-balanced efficient calculation unloading is realized; 
simulation experiments prove that the method reduces the 
delay and energy consumption of the 
mobile edge computing network, improves the task satisfaction 
response delay rate, balances the load of the server, and improves the 
user satisfaction, energy consumption efficiency and stability of the 
mobile edge computing system.