A bean grinding machine comprising: a base seat; a bean container mounted on said base seat for containing beans to be ground; and a grinding mechanism, wherein: said grinding mechanism is removably mounted on said base seat, and includes a first grinding member and a second grinding member which are rotatable relative to and cooperate with each other to define a grinding space for receiving the beans introduced from said bean container; said grinding mechanism including a mounting frame on which said first and second grinding members (32, 33) are mounted, said first grinding member being disengageable from said mounting frame; characterized in said bean grinding machine further comprising a locking mechanism which is disposed on said base seat to lock said grinding mechanism to said base seat, said mounting frame having a first anchoring member, said locking mechanism including a second anchoring member which is disposed to be movable relative to said base seat between a locking position, where said second anchoring member is engaged with said first anchoring member to retain said grinding mechanism on said base seat, and an unlocking position, where said second anchoring member is disengaged from said first anchoring member so as to permit disengagement of said grinding mechanism from said base seat. a base seat; a bean container mounted on said base seat for containing beans to be ground; and a grinding mechanism, wherein: said grinding mechanism is removably mounted on said base seat, and includes a first grinding member and a second grinding member which are rotatable relative to and cooperate with each other to define a grinding space for receiving the beans introduced from said bean container; said grinding mechanism including a mounting frame on which said first and second grinding members (32, 33) are mounted, said first grinding member being disengageable from said mounting frame; characterized in said bean grinding machine further comprising a locking mechanism which is disposed on said base seat to lock said grinding mechanism to said base seat, said mounting frame having a first anchoring member, said locking mechanism including a second anchoring member which is disposed to be movable relative to said base seat between a locking position, where said second anchoring member is engaged with said first anchoring member to retain said grinding mechanism on said base seat, and an unlocking position, where said second anchoring member is disengaged from said first anchoring member so as to permit disengagement of said grinding mechanism from said base seat. said grinding mechanism is removably mounted on said base seat, and includes a first grinding member and a second grinding member which are rotatable relative to and cooperate with each other to define a grinding space for receiving the beans introduced from said bean container; said grinding mechanism including a mounting frame on which said first and second grinding members (32, 33) are mounted, said first grinding member being disengageable from said mounting frame; characterized in said bean grinding machine further comprising a locking mechanism which is disposed on said base seat to lock said grinding mechanism to said base seat, said mounting frame having a first anchoring member, said locking mechanism including a second anchoring member which is disposed to be movable relative to said base seat between a locking position, where said second anchoring member is engaged with said first anchoring member to retain said grinding mechanism on said base seat, and an unlocking position, where said second anchoring member is disengaged from said first anchoring member so as to permit disengagement of said grinding mechanism from said base seat.