Hydrogen-induced delayed cracking (HIDC) of martensitic steel limits its extensive application in lightweight automobile industry. Up to now, the research regarding HIDC of compact-strip-produced martensitic steel (CSP-MS) has not been reported. The HIDC behavior of CSP-MS steel was investigated. It was found that with the increase of hydrogen-charging current density in slow strain rate tensile tests, tensile strength of the two martensitic steels is relatively similar, however elongation decreases significantly while hydrogen embrittlement index (IHE) increases dramatically. The IHE of CSP-MS steel is lower than that of conventional produced martensitic steel (Con-MS) under all test conditions, as indicating that CSP-MS steel has better resistance to HIDC. The small size of TiN in CSP-MS steel leads to delayed initiation of microcrack than that of Con-MS steel, which is the mechanism for its superior resistance to HIDC. This work provides a new avenue for large-scale application of martensitic steel in automotive industry.