The invention belongs to the technical field of online monitoring detection and especially relates to detection on transformer oil chromatogram online monitoring devices, in particular to an intelligent inspection storage device used for verification of an on-site oil chromatogram online monitoring device. The intelligent inspection storage device comprises an automatic control system of an ARM7 framework and taking a Cortex-A8 processor as a core as well as an oil circuit circulating structure, and speed of the Cortex-A8 processor is in a range of 600MHz to higher than 1GHz, thereby being applicable to operating requirements of mobile equipment. An independent piston type storage sample is controlled by virtue of the automatic control system, and a physical environment inside a cavity guarantees stable oil sample concentration; and a cyclic detection mode and a non-cyclic detection mode greatly reduce weight of a complete machine, so that the intelligent inspection storage device canbe conveniently carried to a site to perform detection. The intelligent inspection storage device provided by the invention is applicable to detection on oil chromatogram online monitoring devices ofall kinds of structures, with all kinds of models and manufactured by all kinds of factories and can automatically adjust oil level and automatically circulate, so that escaped gas can be fused into oil again, and the intelligent inspection storage device is applicable to verification on all kinds of sites.