The　multiple　shaking　table　facilities　are　the　prospective　direction　in　the　development　of　earthquake　simulation　shaking　tables　in　engineering　structures.　In　this　paper,　the　state-of-the-art　of　the　multiple　shake-table　facilities　was　briefly　summarized,　and　the　design　and　construction　of　the　reaction　mass　of　Fuzhou　university　earthquake　simulation　multiple　shaking　tables　are　introduced.　The　dynamical　behaviour　of　the　reaction　mass　is　analyzed,　measured　and　compared.　It　is　expected　that　this　introduction　will　be　helpful　to　the　design　and　construction　of　similar　multiple　shaking　table　facilities.