Low-density mullite-based ceramic proppants were prepared from recycled coal fly ash, bauxite, and additives (feldspar, talcum, BaCO3, and MnO2). The effects of MnO2 content and sintering temperature on properties and morphologies of resultant proppants were investigated. Results showed that the performance of proppants have approved significantly at sinter temperature around 1380 degrees C when the content of MnO2 equals to 4wt%, such as low apparent density(2.70 g cm(-3)) and low breakage ratio (3.10% under 52 MPa pressure). The low-density mullite-based ceramic proppant therefore is assumed to be a promising proppant material for the hydraulic fracturing production of petroleum.