diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc5d589cbd8f..6179a502cbe3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -43,6 +43,8 @@
 
 - [#3720](https://github.com/ChainSafe/forest/pull/3720) Implement the
   `Filecoin.GetParentMessages` lotus-compatible RPC API.
+- [#3726](https://github.com/ChainSafe/forest/pull/3726) Implement the
+  `Filecoin.StateMinerFaults` lotus-compatible RPC API.
 - [#3735](https://github.com/ChainSafe/forest/pull/3735) Implement the
   `Filecoin.StateAccountKey` lotus-compatible RPC API.
 - [#3727](https://github.com/ChainSafe/forest/pull/3727) Added glif.io calibnet
diff --git a/Cargo.toml b/Cargo.toml
index b5cbc0b0371d..eac0bf2c4796 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -62,7 +62,7 @@ fil_actor_power_state = "7.0.0"
 fil_actor_reward_state = "7.0.0"
 fil_actor_system_state = "7.0.0"
 fil_actor_verifreg_state = "7.0.0"
-fil_actors_shared = "7.0.0"
+fil_actors_shared = { version = "7.0.0", features = ["json"] }
 filecoin-proofs-api = { version = "16.0", default-features = false }
 flume = "0.11"
 fs_extra = "1.2"
diff --git a/src/lotus_json/mod.rs b/src/lotus_json/mod.rs
index 3ecb31c89e6d..85c723d8c693 100644
--- a/src/lotus_json/mod.rs
+++ b/src/lotus_json/mod.rs
@@ -124,6 +124,8 @@
 use crate::ipld::{json::IpldJson, Ipld};
 use derive_more::From;
 use fil_actor_interface::power::Claim;
+use fil_actors_shared::fvm_ipld_bitfield::json::BitFieldJson;
+use fil_actors_shared::fvm_ipld_bitfield::BitField;
 use serde::{de::DeserializeOwned, Deserialize, Deserializer, Serialize, Serializer};
 use serde_json::json;
 use std::{fmt::Display, str::FromStr};
@@ -503,3 +505,16 @@ impl HasLotusJson for Ipld {
         lotus_json.0
     }
 }
+
+impl HasLotusJson for BitField {
+    type LotusJson = BitFieldJson;
+    fn snapshots() -> Vec<(serde_json::Value, Self)> {
+        vec![]
+    }
+    fn into_lotus_json(self) -> Self::LotusJson {
+        BitFieldJson(self)
+    }
+    fn from_lotus_json(lotus_json: Self::LotusJson) -> Self {
+        lotus_json.0
+    }
+}
diff --git a/src/rpc/mod.rs b/src/rpc/mod.rs
index 760b49efc58a..9462e8314f83 100644
--- a/src/rpc/mod.rs
+++ b/src/rpc/mod.rs
@@ -114,6 +114,7 @@ where
             .with_method(STATE_GET_ACTOR, state_get_actor::<DB>)
             .with_method(STATE_MARKET_BALANCE, state_market_balance::<DB>)
             .with_method(STATE_MARKET_DEALS, state_market_deals::<DB>)
+            .with_method(STATE_MINER_FAULTS, state_miner_faults::<DB>)
             .with_method(STATE_MINER_POWER, state_miner_power::<DB>)
             .with_method(STATE_GET_RECEIPT, state_get_receipt::<DB>)
             .with_method(STATE_WAIT_MSG, state_wait_msg::<DB>)
diff --git a/src/rpc/state_api.rs b/src/rpc/state_api.rs
index 943114b3a285..383a78fe100f 100644
--- a/src/rpc/state_api.rs
+++ b/src/rpc/state_api.rs
@@ -20,6 +20,7 @@ use anyhow::Context as _;
 use cid::Cid;
 use fil_actor_interface::market;
 use fil_actor_interface::miner::MinerPower;
+use fil_actors_shared::fvm_ipld_bitfield::BitField;
 use futures::StreamExt;
 use fvm_ipld_blockstore::Blockstore;
 use fvm_ipld_encoding::{CborStore, DAG_CBOR};
@@ -176,6 +177,22 @@ pub(in crate::rpc) async fn state_miner_power<DB: Blockstore + Send + Sync + 'st
         .map_err(|e| e.into())
 }
 
+/// looks up the miner power of the given address.
+pub(in crate::rpc) async fn state_miner_faults<DB: Blockstore + Send + Sync + 'static>(
+    data: Data<RPCState<DB>>,
+    Params(LotusJson((address, key))): Params<LotusJson<(Address, TipsetKeys)>>,
+) -> Result<LotusJson<BitField>, JsonRpcError> {
+    let ts = data
+        .state_manager
+        .chain_store()
+        .load_required_tipset(&key)?;
+
+    data.state_manager
+        .miner_faults(&address, &ts)
+        .map_err(|e| e.into())
+        .map(|r| r.into())
+}
+
 /// returns the message receipt for the given message
 pub(in crate::rpc) async fn state_get_receipt<DB: Blockstore + Send + Sync + 'static>(
     data: Data<RPCState<DB>>,
diff --git a/src/rpc_api/mod.rs b/src/rpc_api/mod.rs
index d7c05bbd455a..742f2c1e1567 100644
--- a/src/rpc_api/mod.rs
+++ b/src/rpc_api/mod.rs
@@ -80,6 +80,7 @@ pub static ACCESS_MAP: Lazy<HashMap<&str, Access>> = Lazy::new(|| {
     access.insert(state_api::STATE_GET_ACTOR, Access::Read);
     access.insert(state_api::STATE_MARKET_BALANCE, Access::Read);
     access.insert(state_api::STATE_MARKET_DEALS, Access::Read);
+    access.insert(state_api::STATE_MINER_FAULTS, Access::Read);
     access.insert(state_api::STATE_MINER_POWER, Access::Read);
     access.insert(state_api::STATE_GET_RECEIPT, Access::Read);
     access.insert(state_api::STATE_WAIT_MSG, Access::Read);
@@ -232,6 +233,7 @@ pub mod state_api {
     pub const STATE_GET_ACTOR: &str = "Filecoin.StateGetActor";
     pub const STATE_MARKET_BALANCE: &str = "Filecoin.StateMarketBalance";
     pub const STATE_MARKET_DEALS: &str = "Filecoin.StateMarketDeals";
+    pub const STATE_MINER_FAULTS: &str = "Filecoin.StateMinerFaults";
     pub const STATE_MINER_POWER: &str = "Filecoin.StateMinerPower";
     pub const STATE_GET_RECEIPT: &str = "Filecoin.StateGetReceipt";
     pub const STATE_WAIT_MSG: &str = "Filecoin.StateWaitMsg";
diff --git a/src/rpc_client/state_ops.rs b/src/rpc_client/state_ops.rs
index fdc3e44879a3..137cce7ca9b3 100644
--- a/src/rpc_client/state_ops.rs
+++ b/src/rpc_client/state_ops.rs
@@ -16,6 +16,7 @@ use crate::{
 };
 use cid::Cid;
 use fil_actor_interface::miner::MinerPower;
+use fil_actors_shared::fvm_ipld_bitfield::BitField;
 use fil_actors_shared::v10::runtime::DomainSeparationTag;
 use libipld_core::ipld::Ipld;
 
@@ -57,6 +58,10 @@ impl ApiInfo {
         RpcRequest::new(STATE_NETWORK_NAME, ())
     }
 
+    pub fn state_miner_faults_req(miner: Address, tsk: TipsetKeys) -> RpcRequest<BitField> {
+        RpcRequest::new(STATE_MINER_FAULTS, (miner, tsk))
+    }
+
     pub fn state_miner_power_req(miner: Address, tsk: TipsetKeys) -> RpcRequest<MinerPower> {
         RpcRequest::new(STATE_MINER_POWER, (miner, tsk))
     }
diff --git a/src/state_manager/mod.rs b/src/state_manager/mod.rs
index fde274567da8..115cf4f1b360 100644
--- a/src/state_manager/mod.rs
+++ b/src/state_manager/mod.rs
@@ -39,6 +39,7 @@ use cid::Cid;
 use fil_actor_interface::miner::MinerPower;
 use fil_actor_interface::*;
 use fil_actors_shared::fvm_ipld_amt::Amtv0 as Amt;
+use fil_actors_shared::fvm_ipld_bitfield::BitField;
 use fil_actors_shared::v10::runtime::Policy;
 use futures::{channel::oneshot, select, FutureExt};
 use fvm_ipld_blockstore::Blockstore;
@@ -979,6 +980,34 @@ where
         Ok(out)
     }
 
+    /// Retrieves miner faults.
+    pub fn miner_faults(
+        self: &Arc<Self>,
+        addr: &Address,
+        ts: &Arc<Tipset>,
+    ) -> Result<BitField, Error> {
+        let actor = self
+            .get_actor(addr, *ts.parent_state())?
+            .ok_or_else(|| Error::State("Miner actor not found".to_string()))?;
+
+        let state = miner::State::load(self.blockstore(), actor.code, actor.state)?;
+
+        let mut faults = Vec::new();
+
+        state.for_each_deadline(
+            &self.chain_config.policy,
+            self.blockstore(),
+            |_, deadline| {
+                deadline.for_each(self.blockstore(), |_, partition| {
+                    faults.push(partition.faulty_sectors().clone());
+                    Ok(())
+                })
+            },
+        )?;
+
+        Ok(BitField::union(faults.iter()))
+    }
+
     /// Retrieves miner power.
     pub fn miner_power(
         self: &Arc<Self>,
diff --git a/src/tool/subcommands/api_cmd.rs b/src/tool/subcommands/api_cmd.rs
index f8e6bba45a5b..c1851e07aa2c 100644
--- a/src/tool/subcommands/api_cmd.rs
+++ b/src/tool/subcommands/api_cmd.rs
@@ -374,6 +374,10 @@ fn snapshot_tests(store: &ManyCar, n_tipsets: usize) -> anyhow::Result<Vec<RpcTe
             tests.push(RpcTest::identity(ApiInfo::state_miner_power_req(
                 *block.miner_address(),
                 tipset.key().clone(),
+            )));
+            tests.push(RpcTest::identity(ApiInfo::state_miner_faults_req(
+                *block.miner_address(),
+                tipset.key().clone(),
             )))
         }
         tests.push(RpcTest::basic(ApiInfo::state_circulating_supply_req(