PURPOSE: To provide a raw material supply device which can keep a cement material at the optimum temperature for molding.

CONSTITUTION: A raw material supply device 1 is constituted so that a cement material 2 comprising water, cement, sand, fiber and the other various molding materials have mixed up with each other by an agitating vessel 3, stored temporarily, supplied to a molding device through the agitating vessel 3, the agitating vessel 3 is made into jacket structure and a cooling or heating medium can be circulated through a jacket part 34 of the agitating vessel 3.