Abstract:By using Pulse 200 analysis vibration system and the rotary remote stress strain test system, we gave a synchronous test for the wind turbine strain and tower vibration under the operating condition to study the correlation between the two. The spectrum analysis found that the peak frequency of strain spectrum on the wind turbine and the peak frequency of vibration spectrum on the tower can correspond well, and the distribution law of certain rotation frequency round of the wind turbine strain is: strain spanwise from root to tip, the strain at 0°(spanwise) decreases first, then increases and finally decreases slightly. Strain at 45° direction is unchanged, the strain value greatly reduces at 087R near the tip. The overall strain values at 90° chord direction decrease gradually.At the wind turbine blade root from the front back edge direction, the strain values at 0°(spanwise) and 45° increase first, then decrease, (chord direction) the strain value at 90° direction gradually decreases from the front back edge direction. The research provides a new idea for the monitoring and diagnosis of the realtime load of the wind turbine.