The invention discloses an MEO (medium Earth orbit) space environment and effect integrated detection device, and the device comprises a cylindrical detector housing, a collimation blocking layer covering the housing, and all detection units and function layers in the cylindrical interior. The collimation blocking layer is provided with an opening which is used for receiving the emergent space environment particles. The interior of the housing is alternately provided with a metal layer and an insulating layer, wherein the insulating layer forms an internal space, and the internal space is usedfor storing a dosage sensitive element, a single-particle turnover detection element and an internal charging potential monitoring piece. The device is simple in structure, has many functions, is light in weight, and is low in power consumption.