Abstract: The influence of additive on the burning and minerals composition of cement clinker containing calcium sulphoaluminate were researched by chemical analysis and X-Ray diffraction.The results show that the additive must be added in the raw meal for the preparation of the clinker containing calcium sulphoaluminate. The suitable amount of additive can decrease the burning temperature of the clinker containing calcium sulphoaluminate, promote the adopt of f-CaO and improve the burnability of the raw meal. At the relative low temperature (1300 ℃ or 1350 ℃), the clinker containing calcium sulphoaluminate can be preparaed successfully.

Key words: calcium sulphoaluminate%additive%preparation