An electronic weigh packer for weighing according to the number of the goods particles, characterized in that the electronic weigh packer includes a storage funnel, a unit-particle-weight-obtaining unit and a quantifying packaging unit, characterized in that - the unit-particle-weight-obtaining unit comprises a sampling device, a conveying device, a multiple line vibrator, a storage chute, a camera, a camera controller, a light source and an input device for setting the number of particles to be counted, wherein the quantifying packaging unit comprises a dividing chute, a feeding device, weighing hoppers(8, 11) and a weighing controller, wherein the unit-particle-weight-obtaining unit and all the components of the quantifying packaging unit are coordinated by PLC; - the unit particle weight obtaining unit also contains a counting & weighing hopper, wherein the function of the counting & weighing hopper is to weigh the particles lined and numbered by the multiple line vibrator, and the counting & weighing hopper can be separately set up or share with one of the weighing hoppers (8, 11); - the sampling device is situated inside the storage funnel, whose function is to sample the particles of goods to be wrapped and to feed the sampled particles into the conveying device; - the function of the conveying device is to evenly convey the particles into to the multiple line vibrator; - the function of the multiple line vibrator is to accelerate the particles inside its grooves and to line up all the particles inside the grooves in order to prevent overlapping of the particles, and the particles line up and then descend into the storage chute with a bottom door; - the camera coordinates with the light source to scan the descending particles with high velocity and transfers the images to the camera control device; - the camera controller analyzes the images and count the particle number; - the function of the storage chute is: when the number of the particles reaches a set number, the bottom door of the storage chute will open and the particles with the certain number will be weighed in the counting & weighing hopper, - the function of the PLC is to calculate the unit particle weight according to the particle number counted and the total weight of the collective particles, and to calculate the package weight according to the number of particles specified for each package and to amend the weight value to be assigned by the electronic weigh packer; - the function of the weighing controller is to weigh according to the weight value determined by the PLC; - the dividing chute is situated below the storage funnel, and the particles are fed into the weighing hoppers (8, 11) underneath from all of its outlet openings of the dividing chute through all the feeding devices. - the unit-particle-weight-obtaining unit comprises a sampling device, a conveying device, a multiple line vibrator, a storage chute, a camera, a camera controller, a light source and an input device for setting the number of particles to be counted, wherein the quantifying packaging unit comprises a dividing chute, a feeding device, weighing hoppers(8, 11) and a weighing controller, wherein the unit-particle-weight-obtaining unit and all the components of the quantifying packaging unit are coordinated by PLC; - the unit particle weight obtaining unit also contains a counting & weighing hopper, wherein the function of the counting & weighing hopper is to weigh the particles lined and numbered by the multiple line vibrator, and the counting & weighing hopper can be separately set up or share with one of the weighing hoppers (8, 11); - the sampling device is situated inside the storage funnel, whose function is to sample the particles of goods to be wrapped and to feed the sampled particles into the conveying device; - the function of the conveying device is to evenly convey the particles into to the multiple line vibrator; - the function of the multiple line vibrator is to accelerate the particles inside its grooves and to line up all the particles inside the grooves in order to prevent overlapping of the particles, and the particles line up and then descend into the storage chute with a bottom door; - the camera coordinates with the light source to scan the descending particles with high velocity and transfers the images to the camera control device; - the camera controller analyzes the images and count the particle number; - the function of the storage chute is: when the number of the particles reaches a set number, the bottom door of the storage chute will open and the particles with the certain number will be weighed in the counting & weighing hopper, - the function of the PLC is to calculate the unit particle weight according to the particle number counted and the total weight of the collective particles, and to calculate the package weight according to the number of particles specified for each package and to amend the weight value to be assigned by the electronic weigh packer; - the function of the weighing controller is to weigh according to the weight value determined by the PLC; - the dividing chute is situated below the storage funnel, and the particles are fed into the weighing hoppers (8, 11) underneath from all of its outlet openings of the dividing chute through all the feeding devices.