The invention discloses an all-directional invasion detector which comprises an invasion detector body, infrared LED lamps, a connecting frame and a supporting column, wherein two infrared detection windows and a working indication lamp are arranged in the invasion detector body; the infrared detection windows are connected with each other through a connecting belt; a working indication lamp and the infrared LED lamps are arranged on the connecting belt; the invasion detector body is connected with the supporting column through the connecting frame; both the infrared detection windows are semispherical; the invasion detector body, the connecting frame and the supporting column are rotationally connected. According to the all-directional invasion detector, due to the infrared LED lamps, the invasion detector still has a good detection effect even in very dark light; the infrared detection windows form a spherical shape and the invasion detector body can rotate, so that the detector can be suitable for key cultural relics or warehouse protection with a relatively wide invasion detection range.