In this paper, magnetic property and magnetocaloric effect (MCE) in perovskite manganites of the type
La(_0.75-X)Ce_XCa_0.25MnO₃ (x = 0.0, 0.2, 0.3 and 0.5) synthesized by using the standard solid state reaction method have been reported. From the magnetic measurements as a function of temperature and applied magnetic field, we have observed that the Curie temperature (T_C) of the prepared samples strongly dependent on Ce content and was found to be 255, 213 and 150 K for x = 0.0, 0.2 and 0.3, respectively. A large magnetocaloric effect in vicinity of T_C has been observed with a maximum magnetic entropy change (|ΔS_M|_max) of 3.31 and 6.40 J/kgK at 1.5 and 4 T, respectively, for La_0.55Ce_0.2Ca_0.25MnO₃. In addition, relative cooling power (RCP) of the sample under the magnetic field variation of 1.5 T reaches 59 J/kg. These results suggest that La_0.55Ce_0.2Ca_0.25MnO₃ compound could be a suitable candidate as working substance in magnetic refrigeration at 213 K.