Based on one-dimensional quantum waveguide theory for mesoscopic structures, the electron transport properties in T-shape structure with Aharonov-Bohm rings are investigated. In the case of ensuring continuity of wavefunction and closing of the current at an intersection, the analytic expression of transmission coefficient are derived and transmission properties are analysed. It is found that the transmission coefficient of both sides shows typical AB oscillations with the change of magnetic flux. Altering the incident point of electron, the value of left transmission coefficient also changes, the right transmission coefficient appears total reflection phenomenon which has nothing to do with magnetic flux, but for in the vicinity of values φ/φ0=±n(n=0,1,2,…). The location of the incident point cause periodic modulation of the transmission coefficient. Minor deviation from the structure of the system has little effect on transport properties.