The utility model discloses a portable plug-type insulating oil sampling case, including flexible handle, lid, inductor, upper case, lower floor's case and wheel, upper strata case and the case fixed connection of lower floor are the case body, the upper strata incasement is provided with place oil appearance bottle region and place the multiplexer utensil regionally, between upper strata case and the lower floor's case is provided with shell fragment in cutting off, said lid is connected with upper case, and is provided with the inductor on the lid, this portable plug-type insulating oil sampling case, sampling case have adopted the exterior structure of travelling basket, and the upper strata adds puts the case lid, and four wheels are placed to the bottom, and the next door sets up retractable's handle, therefore the staff can draw or push away the case and go ahead, have saved very big manpower, the case is two-layer about being divided into, adds the shell fragment that has four claws in every layer the little wall, according to the size of the bottle placed, shell fragment automatically regulated dynamics, the sampling bottle of holding that can stabilize