Study on synthetically decision-making model for engineering machine's run state

To resolve the complex problem of run state of engineering machine,the evaluating index and crite- rion of run system are put forward in the paper.A synthetical evaluation method to evaluate the engineering machine's run system is put forward using the theory and method of grey related algorithm and property and synthetical property evaluation for reference,and a decision-making model was set up.The qualitative and quantitative indexes of evaluating process are fully taken into consideration,this provides practicality methods and ways for evaluation and decision.