To enhance the degree of freedom of constitution of a louver in a longitudinal type blind.

The louvers 14 are respectively hung from a plurality of carriers 12 which are movable in a head rail 10 in the longitudinal type blind. The louvers 14 are constituted of a plurality of louver units 14A, 14B which are vertically arranged through a connection member. The vertically adjacent ends of the vertically adjacent louver units 14A, 14B are detachably coupled through the connection member.