The invention discloses a separable-type swelling sleeve. The sleeve includes a first connector used for fixing a screw, a second connector used for fixing a screw, an adjusting mechanism used for adjusting the space between the first connector and the second connector and outer installation surfaces used for being connected with the inner walls of installation holes; the adjusting mechanism is connected with the first connector and the second connector separately, and the outer installation surfaces are located on the first connector and the second connector respectively. The separable-type swelling sleeve body can be disassembled and separated to be put into the installation holes drilled in advance easily, the installation is convenient, and the separable-type swelling sleeve is conducive to improvement of the working efficiency.