The invention relates to a detachable multifunctional combined working platform. The combined working platform comprises a first working platform body and a second working platform body, wherein one side of the first working platform body and one side of the second working platform body are detachably connected through a buckle; the first working platform body comprises a box body, wherein at least one layer of partition plate is arranged in the box body, a pair of box doors are connected to the box body through a hinge, a door lock is arranged on the box doors, a layer of anti-static rubber is laid on the platform body at the top of the box body, a bench clamp is fixedly arranged at the top of the box body, and a plurality of casters are fixedly arranged at the bottom of the box body; andthe second working platform body comprises a box body, a pair of box doors are connected to the box body through a hinge, a door lock is arranged on the box doors, a layer of anti-static rubber is laid on the platform body at the top of the box body, and a plurality of casters are fixedly arranged at the bottom of the box body. According to the platform, on-site working requirements can be met, the time is saved, and the repetitive work is avoided.