The invention provides a fastener tape for a slide fastener, which prevents stretching of an element attaching portion in a tape longitudinal direction while maintaining plasticity possessed by a knitted fabric inherently and has the improved strength of the element attaching portion, wherein a narrow width fastener tape is composed of a warp knitting structure in which an element attaching portion constituted of a plurality of wales is formed by knitting along one side edge of a tape main body portion, the element attaching portion is formed by disposing at least: a warp knitting yarn which runs in a zigzag fashion forming a needle loop across two or more wales adjacent to each other such that the needle loop is entangled with a needle loop of another knitting yarn of every other course on a wale; and a weft in-laid yarn which runs across two or more wales adjacent to each other.