The invention discloses a contact flocculation device for printing and dyeing enterprise tail water deep treatment. The contact flocculation device comprises a base, communicated first grooves are formed in the top of the base and in one side wall of the base, a flocculation cylinder is rotatably connected into the first grooves, the bottom of the flocculation cylinder is of a semicircular structure, fixing plates are arranged on two side walls of the flocculation cylinder, an arc-shaped toothed disk is fixed to the center of the outer wall of the bottom of the flocculation cylinder, a first driving motor fixed onto the inner walls of the bottoms of the first grooves is horizontally arranged below the toothed disk, an output end of the first driving motor is fixedly connected with a vertical gear, the gear is engaged with the toothed disk, limit mechanisms with the same structures are symmetrically arranged on two sides of the toothed disk and comprise limit plates fixed to the bottomof the flocculation cylinder, and vertical sections of the limit plates are of arc-shaped structures. Liquid and flocculates in the flocculation cylinder are conveniently discharged, the working efficiency of workers is improved, and the service life of the device is prolonged.