Abstract: To improve the performance of bearing estimation for the coherent signal with acoustic vector hydrophone array, an algorithm based on twodimensional cocollect acoustic vector hydrophone array is proposed. This algorithm firstly constructs a received data using analytical velocity and pressure array data to get covariance matrix, and abstracts three corresponding vectors of the first column of signal subspace to be conjugated and inverted. Then three new matrixes are obtained by using likesingle snapshot construction of matrix and combined. At last, direction of arrival (DOA) estimation is realized by using SVDMUSIC. The analysis denotes that the presented algorithm diagonalizes the signal matrix using type of data organization to recover rank and have aperture extension. Meanwhile, the direction factor of vector array manifold could make suppressing 〖JP2〗to the ambiguity angle so as to keep unilateral directivity of vector array. Simulation proves that this algorithm has better performance than vector array spatial smoothing and vector smoothing, from accuracy and resolution.