A Photometric Study of Two Contact Binaries: CRTS J025408.1+265957 and CRTS J012111.1+272933

We performed new photometric observations for two contact binaries (i.e., CRTS J025408.1+265957 and J012111.1+272933), which were observed by the 1.0-m telescope at Xingjiang Astronomical Observatory. From our light curves several survey data, we derived sets of solutions. found that J012111.1+272933 Aand W-type W UMa, respectively. The results imply spot migrates or disappears in binaries, identified chromospheric activity emissions (e.g. H{\alpha} emission) from LAMOST spectra. O-C curves, orbital periods may be increasing, is interpreted mass transfer less massive component to more one. With transferring, evolve configurations semi-detected ones as predicted theory thermal relaxation oscillation.