diff --git a/README.md b/README.md
index cd601a9..81262d4 100644
--- a/README.md
+++ b/README.md
@@ -257,6 +257,7 @@ Join our [Discord channel](https://discord.gg/WhX2nG6GTQ) or [open an issue](htt
 | **select** | `option` | Selects an option based on its value. |
 | **deselect** | `option` | Deselects an option based on its value. |
 | **remove** | `option` | Alias for `deselect`. |
+| **selectAll** |  | Selects all options if mode is `tags` or `multiple`. |
 | **clear** |  | Deselects all selected options. |
 | **clearSearch** |  | Clears current search query. |
 | **refreshOptions** | `callback` | Refreshes async options list. |
diff --git a/src/composables/useOptions.js b/src/composables/useOptions.js
index c2c59d9..18c009f 100644
--- a/src/composables/useOptions.js
+++ b/src/composables/useOptions.js
@@ -373,6 +373,14 @@ export default function useOptions (props, context, dep)
     }
   }
 
+  const selectAll = () => {
+    if (mode.value === 'single') {
+      return
+    }
+
+    select(fo.value)
+  }
+
   // no export
   const areAllEnabledSelected = (options) => {
     return options.find(o => !isSelected(o) && !o.disabled) === undefined
@@ -620,6 +628,7 @@ export default function useOptions (props, context, dep)
     select,
     deselect,
     remove,
+    selectAll,
     clear,
     isSelected,
     isDisabled,
diff --git a/tests/unit/composables/useOptions.spec.js b/tests/unit/composables/useOptions.spec.js
index 8845de1..66805fe 100644
--- a/tests/unit/composables/useOptions.spec.js
+++ b/tests/unit/composables/useOptions.spec.js
@@ -1291,6 +1291,49 @@ describe('useOptions', () => {
     })
   })
 
+  describe('selectAll', () => {
+    it('should do nothing when single', async () => {
+      let select = createSelect({
+        options: [1,2,3],
+        value: null,
+      })
+
+      select.vm.selectAll()
+
+      await nextTick()
+
+      expect(getValue(select)).toStrictEqual(null)
+    })
+
+    it('should select all when multiple', async () => {
+      let select = createSelect({
+        mode: 'multiple',
+        options: [1,2,3],
+        value: [],
+      })
+
+      select.vm.selectAll()
+
+      await nextTick()
+
+      expect(getValue(select)).toStrictEqual([1,2,3])
+    })
+
+    it('should select all when tags', async () => {
+      let select = createSelect({
+        mode: 'tags',
+        options: [1,2,3],
+        value: [],
+      })
+
+      select.vm.selectAll()
+
+      await nextTick()
+
+      expect(getValue(select)).toStrictEqual([1,2,3])
+    })
+  })
+
   describe('isSelected', () => {
     it('should be true if value equals option value when object false and single', () => {
       let select = createSelect({