diff --git a/packages/tooltip/__tests__/Tooltip.spec.js b/packages/tooltip/__tests__/Tooltip.spec.js
new file mode 100644
index 000000000..0340beea8
--- /dev/null
+++ b/packages/tooltip/__tests__/Tooltip.spec.js
@@ -0,0 +1,208 @@
+import { mount } from '@vue/test-utils'
+import { nextTick } from '@vue/runtime-core'
+import Tooltip from '../Tooltip'
+
+describe('Tooltip', () => {
+    let wrapper
+    it('create', (done) => {
+        wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="提示文字">
+                    <button>click</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        nextTick(_ => {
+            expect(wrapper.vm.$refs.tooltip.popperVM.$el).toHaveProperty('textContent', '提示文字')
+            done()
+        })
+    })
+
+    it('custom popper class', done => {
+        wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="提示文字" popper-class="custom-popper">
+                    <button>click</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        nextTick(_ => {
+            expect(wrapper.vm.$refs.tooltip.popperVM.$el.classList.contains('custom-popper')).toBeTruthy()
+            done()
+        })
+    })
+
+    describe('manual', () => {
+        const wrapper = mount({
+            template: `
+            <el-tooltip ref="tooltip" manual content="abc" v-model="show">
+                <button>click</button>
+            </el-tooltip>
+            `,
+            data() {
+                return { show: false }
+            },
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        const tooltip = wrapper.vm.$refs.tooltip
+        const tooltip2 = wrapper.findComponent({ name: 'ElTooltip' })
+
+        it('aria-hidden is true', async (done) => {
+            await tooltip2.trigger('mouseenter')
+            expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('true')
+            setTimeout(() => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('true')
+                done()
+            }, 0)
+        })
+        it('show', done => {
+            wrapper.vm.show = true
+            nextTick(_ => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('false')
+                done()
+            })
+        })
+        it('still show when trigger mouseleave', async (done) => {
+            await tooltip2.trigger('mouseleave')
+            expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('false')
+            setTimeout(() => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('false')
+                done()
+            }, 0)
+        })
+        it('hidden', done => {
+            wrapper.vm.show = false
+            nextTick(_ => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('true')
+                done()
+            })
+        })
+    })
+
+    describe('hover', () => {
+        const wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="提示文字">
+                    <button>click</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        const tooltip = wrapper.vm.$refs.tooltip
+        const tooltip2 = wrapper.getComponent({ name: 'ElTooltip' })
+        tooltip2.trigger('mouseenter')
+
+        it('popperElm is exist', done => {
+            nextTick(_ => {
+                expect(tooltip.$refs.popper).toBeTruthy()
+                done()
+            })
+        })
+        it('aria-hidden is false', done => {
+            nextTick(_ => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('false')
+                done()
+            })
+        })
+        it('close popper', done => {
+            tooltip2.trigger('mouseleave')
+            setTimeout(_ => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('true')
+                done()
+            }, 300)
+        })
+    })
+
+    it('light mode', done => {
+        wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="abc" effect="light">
+                    <button>abc</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        nextTick(_ => {
+            expect(wrapper.vm.$refs.tooltip.popperVM.$el.classList.contains('is-light')).toBeTruthy()
+            done()
+        })
+    })
+    it('hide after', done => {
+        wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="提示文字" :hide-after="300">
+                    <button>click</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        const tooltip = wrapper.vm.$refs.tooltip
+        const tooltip2 = wrapper.getComponent({ name: 'ElTooltip' })
+
+        nextTick(_ => {
+            tooltip2.trigger('mouseenter')
+            setTimeout(() => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('false')
+                setTimeout(() => {
+                    expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('true')
+                    done()
+                }, 300)
+            }, 100)
+        })
+    })
+    it('reference element focus', done => {
+        wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="提示文字">
+                    <button>click</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+
+        const tooltip = wrapper.vm.$refs.tooltip
+        const tooltip2 = wrapper.getComponent({ name: 'ElTooltip' })
+        nextTick(_ => {
+            tooltip2.trigger('focus')
+            setTimeout(() => {
+                expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('false')
+                expect(wrapper.find('button').element.classList.contains('focusing')).toBeTruthy()
+                tooltip2.trigger('blur')
+                setTimeout(() => {
+                    expect(tooltip.popperVM.$el.getAttribute('aria-hidden')).toBe('true')
+                    expect(wrapper.find('button').element.classList.contains('focusing')).toBeFalsy()
+                    done()
+                }, 300)
+            }, 100)
+        })
+    })
+    it('custom tabindex', () => {
+        wrapper = mount({
+            template: `
+                <el-tooltip ref="tooltip" content="提示文字" :tabindex="-1">
+                    <button>click</button>
+                </el-tooltip>
+            `,
+            components: {
+                [Tooltip.name]: Tooltip
+            }
+        })
+        expect(wrapper.find('button').element.getAttribute('tabindex')).toBe('-1')
+    })
+})
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