Abstract: A safety seat stand apparatus for coin-operated telephone sets includes: a stand body with a horizontal portion and a vertical portion having an open receiving chamber formed in the horizontal portion for securing a coin-operated telephone therein; a drawer-type coin box with a first lock device movably provided under horizontal portion in communication with the open receiving chamber; an information panel structure provided on the vertical portion of the stand body for posting various charges and information thereon; and a check member with a second lock device and a press piece closely engaged with the vertical portion of the stand body so as to safely secure the coin-operated telephone set in the open receiving chamber through the second lock device and the press piece; thereby, a coin-operated telephone set combined with the safety seat stand apparatus can be fixed on any solid supporting object for convenient usage.