The utility model discloses an insulator tray. Box body, single doors are respectively arranged on two sides of the box body; a placing plate is arranged in the box body; the inner space of the box body is divided into a first containing cavity and a second containing cavity by the containing plate, supporting strips are arranged on the two sides of the first containing cavity and the two sides ofthe second containing cavity correspondingly, limiting grooves are formed in the outer surfaces of the supporting strips, limiting mechanisms are arranged at the head ends of the supporting strips, and each limiting mechanism comprises a telescopic spring, a movable column and a limiting cavity; the tray is made of common metal materials and is low in cost, the insulators can be placed and takenout conveniently through the single doors on the two sides, the placing plate is arranged in the box body, the placing area is enlarged, and the application range is wider. A plurality of supporting strips which are symmetrically distributed are arranged in the box body, and through the supporting strips and limiting mechanisms on the supporting strips, the placement plate is convenient to installand detach, so that the tray is suitable for most different types of insulators, the placement plate can be increased or decreased, and the placement area is further increased.