The utility model belongs to the technical field of signal collection, and specifically relates to a dynamic signal collector under a high-overload environment, which aims at solving a problem that an existing data collector is not applicable to application occasions with high condition requirements such as small size, limited space, environment overload and impact. The dynamic signal collector is characterized by comprising a signal collecting front end module, a data coding module, a data storage module, a data transmission module, a power supply management module and a housing. The dynamic signal collector disclosed by the utility model adopts the collecting front end module, the data coding module, the data storage module and the data transmission module to realize dynamic signal collection. The housing consisting of an external metal box, an internal metal box and a metal damping spring is adopted, so that a circuit board can be used without being damaged under the environment with high impact and great overload. Being verified by a laboratory test and actual use, the dynamic signal collector under the high-overload environment is not damaged under 2.5- Mach 30-second overload and impact.