The invention relates to the field of cloth processing equipment, in particular to a full-automatic cloth cutting device which comprises a machine frame and a power distribution console. The machine frame is provided with a cloth feeding device, a cloth cutting device and a cloth collecting device. The front end of the cloth feeding device is provided with a raw material roller. The full-automatic cloth cutting device is characterized in that the cloth feeding device comprises a first cloth supporting roller, a tension roller, a second mop roller, a cloth pressing mechanism and a driving mechanism. The cloth cutting device comprises a cutting platform and a cutting lifting table which are connected through a cutting hydraulic cylinder. The cutting lifting table is provided with a linear guideway, a synchronizing wheel, a synchronous belt, a cutting knife, a limiting switch and a cloth pressing roller. The cloth collecting device comprises a belt conveying platform, an image collector, an automatic cloth detection platform, an industrial camera and a robot cloth collecting mechanism. The robot cloth collecting mechanism comprises a mechanical hand, a sucker mechanism and a control system. The sucker mechanism comprises a sucker support and a vacuum sucker. The full-automatic cloth cutting device can implement automatic calibration, automatic cloth cutting, automatic cloth collection and cloth detection, and the cutting yield and working efficiency are greatly improved.