  We present analysis of the starspot properties and chromospheric activity on
HD 134319 using high precision photometry by TESS in sectors 14-16 (T1), 21-23
(T2) and high-resolution spectroscopy by OHP/ELODIE and Keck/HIRES during years
1995-2013. We applied a two-spot model with GLS determined period
$P=4.436391\pm0.00137$ day to model chunks sliding over TESS light curve, and
measured relative equivalent widths of Ca II H and K, H$\beta$ and H$\alpha$
emissions by subtracting overall spectrum from individual spectrum. It was
found that a two-spot configuration, i.e. a primary, slowly evolving and
long-lasting spot (P) plus a secondary and rapidly evolving spot (S), was
capable of explaining the data, although the actual starspot distribution is
unable to derived from collected data. Despite the spot radius-latitude
degeneracy revealed in the best-fit solutions, a sudden alternation between P
and S radii followed by gradual decrease of S in T1 and the decrease of both P
and S from T1 to T2 were significant, corresponding to the evolution of
magnetic activity. Besides, S revealed rotation and oscillatory longitude
migration synchronized to P in T1, but held much larger migration than P in T2.
This might indicate the evolution of internal magnetic configuration.
Chromospheric activity indicators were found to tightly correlated with each
other and revealed rotational modulation as well as a long-term decrease of
emissions, implying the existence and evolution of magnetic acitivity on HD
134319.
