To investigate the effect of corrosion product film containing chromium on the hydrogen permeation of Tubing Steels, corrosion tests of 80SS, P110-3Cr and P110-7Cr steels were carried out in high pressure and high temperature environment with the coexistence of CO2 and H2S. The hydrogen permeation current density of the specimen was measured by Devanathan-Sthachurski double-cell technique before and after corrosion. Scanning electron microscope/energy dispersive spectroscopy (SEM/ EDS), and x-ray diffraction (XRD) were used to analyzed the morphology and composition of the corrosion scales. The results show that, the corrosion products formed on the three materials are mainly composed of metastable mackinawite iron sulfides, and the typical CO2 corrosion product FeCO3 crystal is not found. There is an enrichment of chromium element in the corrosion products of P110-3Cr (7.4%) and P110-7Cr (13.75%) steels. The apparent diffusion coefficient of 80SS, P110-3Cr and P110-7Cr specimens decreases with the increase of chromium content in steels after corrosion at 120 ℃. The surface hydrogen concentration of 80SS, P110-3Cr and P110-7Cr specimens without corrosion films is 0.98×10?5 mol/cm3, 9.54×10?5 mol/cm3 and 9.3×10?5 mol/cm3 respectively. And the surface hydrogen concentration of the specimens with corrosion films is 0.93×10?5 mol/cm3, 5.17×10?5 mol/cm3 and 8.52×10?5 mol/cm3. The corrosion process of the three tubing steels is controlled by H2S under experimental conditions. The decrease of the effective hydrogen diffusivity is mainly related to the enrichment of chromium element in the corrosion products. Compared with the specimens without corrosion films, the surface hydrogen concentration of the specimens with corrosion films is reduced, and the corrosion product films have an obvious resistance to hydrogen permeation.