The invention discloses a data storage time synchronization realization device and method of a detection robot in a pipeline. The device and the method belong to the field of pipeline surveying and mapping. The device includes an FPGA core control unit, a sensor data collection module, a communication circuit around an FPGA, a data storage module and real-time dynamic difference equipment. The FPGA core control unit is in bidirectional connection with the sensor data collection module, the communication circuit around the FPGA and the data storage module respectively, and is in unidirectionalconnection with the real-time dynamic difference equipment. A power supply circuit supplies power to each module. The method includes: carrying out system initialization on the detection robot in thepipeline, and putting the same into the pipeline to collect data; determining a Tick signal corresponding to a system time mark; and judging whether sensor output frequency is consistent with a reciprocal of Tick, packaging data, storing a data packet according to a protocol format, and writing the data into an SD card. The device and the method solve technical problems of not carrying out time synchronization storage, and generating deviations of pipeline defect detection information and pipeline robot positioning information.