  The cosmic string contributes to our understanding and revelation of the
fundamental structure and evolutionary patterns of the universe, unifying our
knowledge of the cosmos and unveiling new physical laws and phenomena.
Therefore, we anticipate the detection of Stochastic Gravitational Wave
Background (SGWB) signals generated by cosmic strings in space-based detectors.
We have analyzed the detection capabilities of individual space-based
detectors, Lisa and Taiji, as well as the joint space-based detector network,
Lisa-Taiji, for SGWB signals produced by cosmic strings, taking into account
other astronomical noise sources. The results indicate that the Lisa-Taiji
network exhibits superior capabilities in detecting SGWB signals generated by
cosmic strings and can provide strong evidence. The Lisa-Taiji network can
achieve an uncertainty estimation of $\Delta G\mu/G\mu<0.5$ for cosmic string
tension $G\mu\sim4\times10^{-17}$, and can provide evidence for the presence of
SGWB signals generated by cosmic strings at $G\mu\sim10^{-17}$, and strong
evidence at $G\mu\sim10^{-16}$. Even in the presence of only SGWB signals, it
can achieve a relative uncertainty of $\Delta G\mu/G\mu<0.5$ for cosmic string
tension $G\mu<10^{-18}$, and provide strong evidence at $G\mu\sim10^{-17}$.
