diff --git a/spine-ts/spine-construct3/src/aces.json b/spine-ts/spine-construct3/src/aces.json
index 305ba03a4..b160a007c 100644
--- a/spine-ts/spine-construct3/src/aces.json
+++ b/spine-ts/spine-construct3/src/aces.json
@@ -135,6 +135,21 @@
             "type": "number"
           }
         ]
+      },
+      {
+        "id": "set-attachment",
+        "scriptName": "SetAttachment",
+        "highlight": false,
+        "params": [
+          {
+            "id": "slot-name",
+            "type": "string"
+          },
+          {
+            "id": "attachment-name",
+            "type": "string"
+          }
+        ]
       }
     ],
     "expressions": [
@@ -149,6 +164,18 @@
             "type": "number"
           }
         ]
+      },
+      {
+        "id": "slot-attachment",
+        "expressionName": "SlotAttachment",
+        "highlight": false,
+        "returnType": "string",
+        "params": [
+          {
+            "id": "slot-name",
+            "type": "string"
+          }
+        ]
       }
     ]
   }
diff --git a/spine-ts/spine-construct3/src/c3runtime/actions.ts b/spine-ts/spine-construct3/src/c3runtime/actions.ts
index 0a36b66ac..18a314fa9 100644
--- a/spine-ts/spine-construct3/src/c3runtime/actions.ts
+++ b/spine-ts/spine-construct3/src/c3runtime/actions.ts
@@ -35,6 +35,10 @@ C3.Plugins.EsotericSoftware_SpineConstruct3.Acts =
 
 	SetEmptyAnimation (this: SDKInstanceClass, track: number, mixDuration: number) {
 		this.setEmptyAnimation(track, mixDuration);
+	},
+
+	SetAttachment (this: SDKInstanceClass, slotName: string, attachmentName: string) {
+		this.setAttachment(slotName, attachmentName === "" ? null : attachmentName);
 	}
 
 };
diff --git a/spine-ts/spine-construct3/src/c3runtime/expressions.ts b/spine-ts/spine-construct3/src/c3runtime/expressions.ts
index 9b3caabee..11e8c1ca5 100644
--- a/spine-ts/spine-construct3/src/c3runtime/expressions.ts
+++ b/spine-ts/spine-construct3/src/c3runtime/expressions.ts
@@ -7,6 +7,13 @@ C3.Plugins.EsotericSoftware_SpineConstruct3.Exps =
 {
 	Double (this: SDKInstanceClass, num: number) {
 		return num * 2;
+	},
+	SlotAttachment (this: SDKInstanceClass, slotName: string) {
+		if (!this.skeleton) return "";
+		const slot = this.skeleton.findSlot(slotName);
+		if (!slot) return "";
+		const attachment = slot.pose.getAttachment();
+		return attachment ? attachment.name : "";
 	}
 };
 
diff --git a/spine-ts/spine-construct3/src/c3runtime/instance.ts b/spine-ts/spine-construct3/src/c3runtime/instance.ts
index 3e2dc8ade..37ee6f3e2 100644
--- a/spine-ts/spine-construct3/src/c3runtime/instance.ts
+++ b/spine-ts/spine-construct3/src/c3runtime/instance.ts
@@ -179,6 +179,10 @@ class SpineC3Instance extends globalThis.ISDKWorldInstanceBase {
 		this.state?.setEmptyAnimation(track, mixDuration);
 	}
 
+	public setAttachment (slotName: string, attachmentName: string | null) {
+		this.skeleton?.setAttachment(slotName, attachmentName);
+	}
+
 	private _setSkin () {
 		const { skeleton } = this;
 		if (!skeleton) return;
diff --git a/spine-ts/spine-construct3/src/lang/en-US.json b/spine-ts/spine-construct3/src/lang/en-US.json
index 4d96de10f..5c276c08d 100644
--- a/spine-ts/spine-construct3/src/lang/en-US.json
+++ b/spine-ts/spine-construct3/src/lang/en-US.json
@@ -209,6 +209,21 @@
                 "desc": "Duration in seconds to mix from the current animation to empty"
               }
             }
+          },
+          "set-attachment": {
+            "list-name": "Set attachment",
+            "display-text": "Set slot {0} attachment to {1}",
+            "description": "Change the attachment on a specific slot",
+            "params": {
+              "slot-name": {
+                "name": "Slot name",
+                "desc": "Name of the slot"
+              },
+              "attachment-name": {
+                "name": "Attachment name",
+                "desc": "Name of the attachment to set"
+              }
+            }
           }
         },
         "expressions": {
@@ -221,6 +236,16 @@
                 "desc": "The number to double."
               }
             }
+          },
+          "slot-attachment": {
+            "description": "Get the name of the attachment on a slot. Returns empty string if no attachment.",
+            "translated-name": "SlotAttachment",
+            "params": {
+              "slot-name": {
+                "name": "Slot name",
+                "desc": "Name of the slot"
+              }
+            }
           }
         }
       }
diff --git a/spine-ts/spine-construct3/src/lang/zh-CN.json b/spine-ts/spine-construct3/src/lang/zh-CN.json
index 6738a4f1d..599660a85 100644
--- a/spine-ts/spine-construct3/src/lang/zh-CN.json
+++ b/spine-ts/spine-construct3/src/lang/zh-CN.json
@@ -211,6 +211,21 @@
             }
           }
         },
+        "set-attachment": {
+          "list-name": "设置附件",
+          "display-text": "将插槽{0}的附件设置为{1}",
+          "description": "更改特定插槽上的附件",
+          "params": {
+            "slot-name": {
+              "name": "插槽名称",
+              "desc": "插槽的名称"
+            },
+            "attachment-name": {
+              "name": "附件名称",
+              "desc": "要设置的附件名称"
+            }
+          }
+        },
         "expressions": {
           "double": {
             "description": "将数字翻倍。",
@@ -221,6 +236,16 @@
                 "desc": "要翻倍的数字。"
               }
             }
+          },
+          "slot-attachment": {
+            "description": "获取插槽上的附件名称。如果没有附件则返回空字符串。",
+            "translated-name": "SlotAttachment",
+            "params": {
+              "slot-name": {
+                "name": "插槽名称",
+                "desc": "插槽的名称"
+              }
+            }
           }
         }
       }
diff --git a/spine-ts/spine-core/src/Skeleton.ts b/spine-ts/spine-core/src/Skeleton.ts
index 0ba5c4167..02acbd9d7 100644
--- a/spine-ts/spine-core/src/Skeleton.ts
+++ b/spine-ts/spine-core/src/Skeleton.ts
@@ -407,7 +407,7 @@ export class Skeleton {
 	/** A convenience method to set an attachment by finding the slot with {@link findSlot()}, finding the attachment with
 	 * {@link getAttachment()}, then setting the slot's {@link Slot.attachment}.
 	 * @param attachmentName May be null to clear the slot's attachment. */
-	setAttachment (slotName: string, attachmentName: string) {
+	setAttachment (slotName: string, attachmentName: string | null) {
 		if (!slotName) throw new Error("slotName cannot be null.");
 		const slot = this.findSlot(slotName);
 		if (!slot) throw new Error(`Slot not found: ${slotName}`);