The invention discloses a loading device for a printing, dyeing and setting machine. The loading device comprises a cloth feeding device, a trough device and one or more roller devices, wherein electric cloth smoothing roller devices and rolling cloth smoothing roller devices are arranged on the cloth feeding device; the electric cloth smooth roller devices comprise perforated stainless steel pipe sleeves, balls, springs, perforated rollers, small-sized motors and transmission belts; a dye separating groove is formed in the trough device; the roller devices comprise large circle gears, small circle gears, flat gear sliding rods, pressure sensors, control processors, motors and rollers. According to the structural design, a person can manage the loading device more conveniently, and the cloth output quality can be ensured. At the beginning of cloth feeding, the person is required to look at the conventional loading device to know the factors, impacting the appearance and quality of cloth, that whether the cloth shifts or not, whether a corner of the cloth is folded or not, and the like; when the cloth enters a trough, the person is required to look at the conventional loading device frequently to know that whether pressures on the left and right sides of the roller are the same or not, otherwise, more materials are fed to the side on which the pressure is lower, while less materials are fed to the other side on which the pressure is higher, that is, the quality problem of inconsistency between the left and right parts of the cloth is caused.