diff --git a/test_generators/operations/main.py b/test_generators/operations/main.py
index 8b0a2a6d83..84cfd0eaba 100644
--- a/test_generators/operations/main.py
+++ b/test_generators/operations/main.py
@@ -1,9 +1,12 @@
 from gen_base import gen_runner
 
 from deposits import mini_deposits_suite, full_deposits_suite
+from proposer_slashing import mini_proposer_slashing_suite, full_proposer_slashing_suite
 
 if __name__ == "__main__":
     gen_runner.run_generator("operations", [
         mini_deposits_suite,
-        full_deposits_suite
+        full_deposits_suite,
+        mini_proposer_slashing_suite,
+        full_proposer_slashing_suite,
     ])
diff --git a/test_generators/operations/proposer_slashing.py b/test_generators/operations/proposer_slashing.py
new file mode 100644
index 0000000000..5e2946feda
--- /dev/null
+++ b/test_generators/operations/proposer_slashing.py
@@ -0,0 +1,219 @@
+from eth_utils import (
+    to_dict,
+    to_tuple,
+)
+
+from eth2spec.phase0.spec import (
+    BeaconBlockHeader,
+    BeaconState,
+    ProposerSlashing,
+    apply_constants_preset,
+    get_epoch_start_slot,
+    process_proposer_slashing,
+    MIN_DEPOSIT_AMOUNT,
+    MAX_EFFECTIVE_BALANCE,
+)
+from eth2spec.debug.encode import encode
+
+from gen_base import (
+    gen_suite,
+    gen_typing,
+)
+
+from preset_loader import loader
+
+import keys
+import genesis
+
+
+NUM_VALIDATORS = 100
+
+
+@to_dict
+def valid():
+    yield 'description', 'valid proposer slashing'
+
+    deposits = genesis.create_deposits(
+        keys.pubkeys[:NUM_VALIDATORS],
+        keys.withdrawal_creds[:NUM_VALIDATORS],
+    )
+    state = genesis.create_genesis_state(deposits)
+    yield 'pre', encode(state, BeaconState)
+
+    header_1 = BeaconBlockHeader(state_root=b"\x00" * 32)
+    header_2 = BeaconBlockHeader(state_root=b"\x11" * 32)
+    proposer_slashing = ProposerSlashing(
+        proposer_index=3,
+        header_1=header_1,
+        header_2=header_2,
+    )
+    yield 'proposer_slashing', encode(proposer_slashing, ProposerSlashing)
+
+    process_proposer_slashing(state, proposer_slashing)
+    yield 'post', encode(state, BeaconState)
+
+
+@to_dict
+def invalid_wrong_index():
+    yield 'description', 'slashing validator with index out of bounds'
+
+    deposits = genesis.create_deposits(
+        keys.pubkeys[:NUM_VALIDATORS],
+        keys.withdrawal_creds[:NUM_VALIDATORS],
+    )
+    state = genesis.create_genesis_state(deposits)
+    yield 'pre', encode(state, BeaconState)
+
+    header_1 = BeaconBlockHeader(state_root=b"\x00" * 32)
+    header_2 = BeaconBlockHeader(state_root=b"\x11" * 32)
+    proposer_slashing = ProposerSlashing(
+        proposer_index=NUM_VALIDATORS,
+        header_1=header_1,
+        header_2=header_2,
+    )
+    yield 'proposer_slashing', encode(proposer_slashing, ProposerSlashing)
+
+    try:
+        process_proposer_slashing(state, proposer_slashing)
+    except IndexError:
+        pass
+    else:
+        assert False
+    yield 'post', None
+
+
+@to_dict
+def invalid_different_epoch():
+    yield 'description', 'slashing validator for headers from two different epochs'
+    deposits = genesis.create_deposits(
+        keys.pubkeys[:NUM_VALIDATORS],
+        keys.withdrawal_creds[:NUM_VALIDATORS],
+    )
+    state = genesis.create_genesis_state(deposits)
+    yield 'pre', encode(state, BeaconState)
+
+    header_1 = BeaconBlockHeader(
+        state_root=b"\x00" * 32,
+        slot=get_epoch_start_slot(0),
+    )
+    header_2 = BeaconBlockHeader(
+        state_root=b"\x11" * 32,
+        slot=get_epoch_start_slot(1),
+    )
+    proposer_slashing = ProposerSlashing(
+        proposer_index=3,
+        header_1=header_1,
+        header_2=header_2,
+    )
+    yield 'proposer_slashing', encode(proposer_slashing, ProposerSlashing)
+
+    try:
+        process_proposer_slashing(state, proposer_slashing)
+    except AssertionError:
+        pass
+    else:
+        assert False
+    yield 'post', None
+
+
+@to_dict
+def invalid_same_headers():
+    yield 'description', 'slashing validator with only one header'
+
+    deposits = genesis.create_deposits(
+        keys.pubkeys[:NUM_VALIDATORS],
+        keys.withdrawal_creds[:NUM_VALIDATORS],
+    )
+    state = genesis.create_genesis_state(deposits)
+    yield 'pre', encode(state, BeaconState)
+
+    header_1 = BeaconBlockHeader(
+        state_root=b"\x00" * 32,
+    )
+    proposer_slashing = ProposerSlashing(
+        proposer_index=3,
+        header_1=header_1,
+        header_2=header_1,
+    )
+    yield 'proposer_slashing', encode(proposer_slashing, ProposerSlashing)
+
+    try:
+        process_proposer_slashing(state, proposer_slashing)
+    except AssertionError:
+        pass
+    else:
+        assert False
+    yield 'post', None
+
+
+@to_dict
+def invalid_not_active():
+    yield 'description', 'slashing validator who is not active yet'
+
+    deposits = genesis.create_deposits(
+        keys.pubkeys[:NUM_VALIDATORS],
+        keys.withdrawal_creds[:NUM_VALIDATORS],
+        amounts=[MIN_DEPOSIT_AMOUNT] + [MAX_EFFECTIVE_BALANCE] * (NUM_VALIDATORS - 1)
+    )
+    state = genesis.create_genesis_state(deposits)
+    yield 'pre', encode(state, BeaconState)
+
+    header_1 = BeaconBlockHeader(
+        state_root=b"\x00" * 32,
+    )
+    header_2 = BeaconBlockHeader(
+        state_root=b"\x11" * 32,
+    )
+    proposer_slashing = ProposerSlashing(
+        proposer_index=0,
+        header_1=header_1,
+        header_2=header_2,
+    )
+    yield 'proposer_slashing', encode(proposer_slashing, ProposerSlashing)
+
+    try:
+        process_proposer_slashing(state, proposer_slashing)
+    except AssertionError:
+        pass
+    else:
+        assert False
+    yield 'post', None
+
+
+@to_tuple
+def proposer_slashing_cases():
+    yield valid()
+    yield invalid_wrong_index()
+    yield invalid_different_epoch()
+    yield invalid_same_headers()
+    yield invalid_not_active()
+
+
+def mini_proposer_slashing_suite(configs_path: str) -> gen_typing.TestSuiteOutput:
+    presets = loader.load_presets(configs_path, 'minimal')
+    apply_constants_preset(presets)
+
+    return ("proposer_slashing_minimal", "proposer_slashing", gen_suite.render_suite(
+        title="proposer slashing operation",
+        summary="Test suite for proposer slashing operation processing",
+        forks_timeline="testing",
+        forks=["phase0"],
+        config="minimal",
+        runner="operations",
+        handler="proposer_slashing",
+        test_cases=proposer_slashing_cases()))
+
+
+def full_proposer_slashing_suite(configs_path: str) -> gen_typing.TestSuiteOutput:
+    presets = loader.load_presets(configs_path, 'mainnet')
+    apply_constants_preset(presets)
+
+    return ("proposer_slashing_full", "proposer_slashing", gen_suite.render_suite(
+        title="proposer slashing operation",
+        summary="Test suite for proposer slashing operation processing",
+        forks_timeline="mainnet",
+        forks=["phase0"],
+        config="mainnet",
+        runner="operations",
+        handler="proposer_slashing",
+        test_cases=proposer_slashing_cases()))