diff --git a/client/ayon_core/hosts/traypublisher/plugins/publish/validate_editorial_package.py b/client/ayon_core/hosts/traypublisher/plugins/publish/validate_editorial_package.py
new file mode 100644
index 0000000000..869dc73811
--- /dev/null
+++ b/client/ayon_core/hosts/traypublisher/plugins/publish/validate_editorial_package.py
@@ -0,0 +1,70 @@
+import os
+import opentimelineio
+
+import pyblish.api
+from ayon_core.pipeline import PublishValidationError
+
+
+class ValidateEditorialPackage(pyblish.api.InstancePlugin):
+    """Checks that published folder contains all resources from otio
+
+    Currently checks only by file names and expects flat structure.
+    It ignores path to resources in otio file as folder might be dragged in and
+    published from different location than it was created.
+    """
+
+    label = "Validate Editorial Package"
+    order = pyblish.api.ValidatorOrder - 0.49
+
+    hosts = ["traypublisher"]
+    families = ["editorial_pckg"]
+
+    def process(self, instance):
+        editorial_pckg_data = instance.data.get("editorial_pckg")
+        if not editorial_pckg_data:
+            raise PublishValidationError(
+                f"Editorial package not collected")
+
+        folder_path = editorial_pckg_data["folder_path"]
+
+        otio_path = editorial_pckg_data["otio_path"]
+        if not otio_path:
+            raise PublishValidationError(
+                f"Folder {folder_path} missing otio file")
+
+        resource_paths = editorial_pckg_data["resource_paths"]
+
+        resource_file_names = {os.path.basename(path)
+                               for path in resource_paths}
+
+        otio_data = opentimelineio.adapters.read_from_file(otio_path)
+
+        target_urls = self._get_all_target_urls(otio_data)
+        missing_files = set()
+        for target_url in target_urls:
+            target_basename = os.path.basename(target_url)
+            if target_basename not in resource_file_names:
+                missing_files.add(target_basename)
+
+        if missing_files:
+            raise PublishValidationError("Otio file contains missing files "
+                                         f"'{missing_files}'.")
+
+        instance.data["editorial_pckg"]["otio_data"] = otio_data
+
+    def _get_all_target_urls(self, otio_data):
+        target_urls = []
+
+        # Iterate through tracks, clips, or other elements
+        for track in otio_data.tracks:
+            for clip in track:
+                # Check if the clip has a media reference
+                if clip.media_reference is not None:
+                    # Access the target_url from the media reference
+                    target_url = clip.media_reference.target_url
+                    if target_url:
+                        target_urls.append(target_url)
+
+        return target_urls
+
+