An optimization model in the integrated compressor rotor of gas turbine engine is built up.The minimum weight is selected as objective function.The stress is analysed by Axisymmetric Cyclic Thermal Elastic-Plastic-Creep Finite Element Method.The structural size

local static strength

local low-cycle-fatigue life

and disc burst speed are used as constraints.At the same time

the configuration method

automatic meshing

mesh checking

sensitivity analysis

and post-processing interface are studied.Finally

an Integrated Compressor Rotor Optimal Design Program (ICRODP) is worked out.A rotor has been analysed by this program with success. The weight is decreased significantly to meet the requirements of the strength and the low-cycle-fatigue life for the rotor.