The invention belongs to the technical field of oilfield production equipment, and particularly relates to a bidirectional anchoring downhole instrument hanger. The hanger comprises a hanger body, a putting device for putting the hanger body and a salvaging device for salvaging the hanger body, wherein the hanger body comprises a salvaging rod, an upper connecting rod seat, a spring
bushing, an upper taper sleeve, a lower taper sleeve, a release sleeve, a lower connecting rod, rolling wheels, a connecting rod, a lower connecting rod seat, a suspension joint, a connecting rod spring, a connecting rod screw, a taper sleeve spring, a shearing nail, an anti-rotating sleeve and a limiting screw; the putting device comprises a putting joint, an adjusting nut, an adjusting rod, a putting outer cylinder, a putting claw, a putting spring, an elastic cylindrical pin and an elastic pin; and the salvaging device comprises an
upper joint, an outer cylinder, a protective sleeve, a connecting openingring, a release spring, a salvaging claw spring, a salvaging claw, a shaft, a protective cylinder, a fastening screw and a shearing pin. According to the hanger, a spherical self-locking type mode isadopted, and unlocking is safe and reliable; and an up-down bidirectional anchoring mode is adopted, and liquids in a well flow upwards, so that the hanger is prevented from moving up and down, and the safety and the reliability are achieved.