The invention provides a fluorescent ceramic material with the chemical formula of (A(2-x)RexM)(Mg2D3)O12, wherein A is at least one of Y, Lu, Sc, Gd and Ga, Re is at least one of Eu, Ce, Pr, Sm, Dy,Tm, Tb and Nd, M is at least one of Ca, Sr and Ba, D is at least one of Ti, Si and Ge, and x is larger than or equal to 0.001 and smaller than 2. The fluorescent ceramic can be effectively excited bya blue light chip, and a low-color-temperature white light LED can be produced in combination with the blue light chip. Meanwhile, the fluorescent ceramic has the mechanical performance incomparable to fluorescent powder and can be directly packaged with the blue light chip, the packaging mode of fluorescent powder and organic materials at present is replaced, the problems of poor heat dissipationof organic packaging materials and lighting effect reduction and color drifting caused by continuous high temperature are solved effectively, and the service life of a white light LED device is prolonged substantially.