The invention relates to a plastic inspection well comprehensive test detector and belongs to the field of product performance detection and test. The detector comprises a frame, a workbench I, an axial-radial loading hydraulic cylinder, a pressing plate, a guide rail I, a slide block, a shearing loading hydraulic cylinder, a pressing head connection support, a saddle-shaped pressing head, a horizontal mobile hydraulic cylinder, a hinging support, a stop block, a heavy punch, a guide rail II, a steel wire rope, a beam, an electromagnet, a lifting hydraulic cylinder, a water tank, a pressing block, a water pump, a motor, a two-position three way magnetic exchange valve and a pressure regulating and limiting valve. The detector can detect axial load, radial load, bellmouth shearing load, airtightness and weld strength of a plastic inspection well, lateral ring flexibility, rigidity and shock resistance, and pedal bearing performances, has a wide application range, realizes automatic control, automatic test, automatic recording and data storage, has the advantages of reliable operation and high test efficiency, realizes dead load test detection, has a simple structure and multiple functions and can be popularized easily.