The invention relates to a long-strip boat feeding device which comprises a programmable logic controller (PLC), a bin, a conveying belt and a motor. The PLC is used for executing controlling of a main engine of the feeding device; the bin is used for executing horizontal pushing of a boat (10); the conveying belt is used for conveying the boat (10) fed by the bin; the motor is used for driving the conveying belt; the bin uses a double bin or multiple bin form; the conveying belt comprises a boat feeding belt (24) and a material receiving belt (29); and the motor comprises a boat feeding belt motor (25) and a material receiving belt motor (26) which are correspondingly used for driving the boat feeding belt (24) and the material receiving belt (29). The invention further provides a long-strip boat feeding method. By means of the long-strip boat feeding device, automatic boat feeding in the operation of lossless loading is achieved. The long-strip boat feeding device has the advantages of being low in fault rate, small in operation noises, convenient to use, simple in operation, good in mechanism spatial perspective effects, large in space, easy to check and maintain, simple in field installation and easy to install on site.