The invention relates to a prefilling screening tube, and belongs to the technical field of mechanical sand prevention and water control sieve tubes. The prefilling screening tube is constituted by a basic sieve tube, a lower punched seam tube, an upper punched seam tube and an elastic block fixed ring; the upper end of the basic sieve tube is sleeved with the upper punched seam tube through an upper supporting ring; the lower end of the basic screening tube is sleeved with the lower punched seam tube through a lower supporting ring; the elastic fixed ring is arranged between the upper punched seam tube and the lower punched seam tube, and the cavities among the lower punched seam tube, the upper punched seam tube and the basic sieve tubes are filled with filling ceramsite separately. The prefilling screening tube is simple in structure and high in practicability, in the working process, an upper elastic block and the lower elastic block can generate tiny elastic deformation according to pressure of corresponding oil layers, in this way, the voidage of ceramsite clamped into a sand grain area can be increased, so that sand grains can enter the basic sieve tube with crude oil, and the sieve tube can further keep a certain permeability; meanwhile, since the surface of filled ceramsite is plated with a coating with a lipophilic and water repellent property, the filling sieve tube has the effect of sand prevention and water control, and the water content of the mined crude oil can be effectively lowered.