The invention belongs to the technical field of nuclear power station operation and maintenance, and particularly relates to a bolt group pre-tightening data measurement and wireless acquisition device and system and a using method of the device. According to the technical scheme, the device comprises data acquisition systems and a wireless transmission system, wherein each data acquisition systemcomprises a measurement table, a data line and an acquisition transmitter, and the measurement table is connected to a to-be-tested bolt and is connected to the acquisition transmitter through the data line; the wireless transmission system comprises a data receiver and a notebook computer, wherein the data receiver establishes a relation with the acquisition transmitter of each data acquisitionsystem through a carrier signal; a wireless receiving component is arranged in the data receiver and is inserted into the notebook computer through a self-contained USB plug. The device, the system and the method have the beneficial effects that a measured value on a dial depth gauge can be collected and collected into a computer system in a wireless sending and receiving mode, the previous manualreading and recording operation modes are changed, the synchronous acquisition of multiple groups of data can be achieved, the working efficiency is improved, and the human error is avoided.