By　testing　and　analyzing　the　chemical　composition,　mineral　composition,　particle　size　distribution,　heavy　metal　content　and　organic　matter　content　of　five　different　river　and　lake　sludges,　the　similarities　and　differences　of　different　river　and　lake　sludges　were　analyzed.The　feasibility　of　producing　sintered　brick　and　ceramsite　from　different　river　and　lake　sludges　was　discussed.The　results　showed　that　the　chemical　compositions　of　different　river　and　lake　sludges　belong　to　clay　materials　composed　of　SiO2,　the　mineral　composition　was　slightly　different,　and　the　content　of　heavy　metals　meets　the　standard　requirements.The　water　absorption,　compressive　strength　and　other　indexes　of　sintered　bricks　prepared　from　Jiujiang　sludge　meet　the　national　standard　GB/T　2542-2012　requirements;　All　indexes　of　sludge　ceramsite　fired　from　Taihu　lake　sludge　meet　the　requirements　of　national　standard　GB/T　17431-2010.High　temperature　roasting　can　effectively　solidify　heavy　metals　in　sludge.This　study　provides　a　valuable　reference　for　harmless,　reduction　and　resource　disposal　of　sludge.　©　2022,　Editorial　Department　of　Wuhan　University　of　Technology.　All　right　reserved.