Mobile agent（ MA） mode is one of the computing modes of wireless sensor networks（ WSNs）. Comparing with C / S mode

MA mode has many advantages. At present

MA mode is mainly studied on energy consumption

time delay and data redundancy. A method using hop count as standard is proposed for performance evaluation of WSNs

by establishing network model

network datas are abstracted to data packets style

and calculate transmitting number of all data packets with a network task which is completed under the two modes

then formula of hopcount is derived and study the two modes based on this. Result shows that the total hops of MA mode is mainly affected by the fusion proportion factor

but the overall performance is better than C / S mode.