The invention discloses a multi-layer interface recognition method of direction signals. The method comprises following steps: firstly, obtaining direction natural GR and direction signals based on logging and extracting stratum dip angles and azimuthal angles; obtaining logging response value of instrument direction signals under different source distances and different frequencies based on well logging in order to obtain standard well-logging data and actual layer interfaces; constructing a stratum model; and finally, calculating an output recover result of the stratum model and drawing a borehole trajectory-stratum interface relation map. The method has following beneficial effects: direction signals are applied to recognize multiple layer interfaces and obtain complete borehole-stratum information so that well-logging assessment files can be improved; in geology steering, relations between section information on undrilled layer resistivity and reservoir positions can be obtained in advance in order to provide data support for bit adjustment in a drilling process; in the later assessment, reservoir thickness, reservoir oil saturation and the like can be precisely calculated through the inter-layer boundaries and inversion results of resistivity in each layer in order to provide reliable parameters for reservoir assessment.