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We present the results of our new observations of GSC 1374-01131, a recently discovered high-amplitude delta Scuti star for which, in 2013, we detected the eclipsing component of the light curve in the Catalina surveys data. We acquired new CCD photometry in Johnson's B, V, and R bands for this star. We improved the periods of the eclipses (P_e = 5^d.96857) and of the pulsation (P_p = 0^d.08494573) and other parameters of the light curves. GSC 1374-01131 it is a eclipsing binary of the Algol type (EA); one of its components is a pulsating HADS star. Currently, GSC 1374-01131 has the lowest depth of the main eclipse (A_e = 0^m.13) among all known HADS stars in eclipsing binary systems, comparable to the observed pulsation amplitude.