The utility model discloses a kind auxiliary device is advanced in transformer oil chromatography analysis, including the syringe body, still include with syringe body assorted integrated into one piece's n type frame and extension spring, handle and promotion connecting rod, syringe constant head tank and syringe needle constant head tank have been seted up to the medial surface on the both sideslimit of n type frame, strip -shaped groove has been seted up to the lateral surface on the both sides limit that the n type put up level respectively, wherein the recess on syringe constant head tank upper portion is opened to two rectangular shape through -holes, it establishes between the two rectangular shape through -holes on syringe constant head tank upper portion to promote the connectingrod, the extension spring is established in two strip -shaped groove of syringe constant head tank lower part, and the one end of extension spring is connected with the promotion connecting rod, andthe bottom at two strip -shaped groove is fixed to the other end, the outside at n type frame is established to the handle. Should advance a kind auxiliary device, it is rational in infrastructure, join in marriage the dress with the 1mL syringe of existing usefulness, compact structure, light and handy, can satisfy daily a lot of used repeatedly at the reliability height, avoids the manual work to advance the error that kind dynamics and speed nonconformity caused.