To improve the property of measuring accuracy and noise suppression of the current ultrasonic anemoscope, a measurement method of wind vector is proposed, which is based on the structure of ultrasonic receiving array with dual sensors. Firstly, a structure of wind speed and direction measurement system is designed by using the principle of ultrasonic wind measurement. It consists of an ultrasonic transmitting sensor and two ultrasonic receiving sensors. Then, an ultrasonic time delay estimation algorithm based on the correlation detection is proposed. The wind speed and direction can be obtained directly via the relation between ultrasonic transmission time and wind vector. Finally, the feasibility and effectiveness of the proposed method are evaluated by several simulation experiments. The actual measured data are also utilized through establishing a wind measurement system with dual-sensor ultrasonic array. Experimental results show that the proposed method has the advantages of simple structure, stable algorithm, low computational complexity and good noise suppression performance. The practical test experiments show that the maximum relative error of wind speed measurement is 2. 3% , and the maximum error of wind direction angle measurement is -1. 5°. The technical requirements of wind vector measuring instrument can be meet basically.