diff --git a/changelog_unreleased/typescript/10418.md b/changelog_unreleased/typescript/10418.md
new file mode 100644
index 000000000..ef69e0cf0
--- /dev/null
+++ b/changelog_unreleased/typescript/10418.md
@@ -0,0 +1,16 @@
+#### Support TypeScript 4.2 `abstract` Construct Signatures via `babel-ts` (#10418 by @sosukesuzuki)
+
+Support [`abstract` Construct Signatures](https://devblogs.microsoft.com/typescript/announcing-typescript-4-2/#abstract-construct-signatures).
+
+<!-- prettier-ignore -->
+```ts
+// Input
+type T = abstract new () => void;
+
+// Prettier main
+SyntaxError: Unexpected token, expected ";" (1:19)
+
+// Prettier stable
+type T = abstract new () => void;
+
+```
diff --git a/src/language-js/print/typescript.js b/src/language-js/print/typescript.js
index 4ba8833d2..2e8310200 100644
--- a/src/language-js/print/typescript.js
+++ b/src/language-js/print/typescript.js
@@ -296,6 +296,9 @@ function printTypescript(path, options, print) {
     case "TSConstructSignatureDeclaration":
     case "TSCallSignatureDeclaration":
     case "TSConstructorType": {
+      if (n.type === "TSConstructorType" && n.abstract) {
+        parts.push("abstract ");
+      }
       if (n.type !== "TSCallSignatureDeclaration") {
         parts.push("new ");
       }
diff --git a/tests/misc/typescript-babel-only/__snapshots__/jsfmt.spec.js.snap b/tests/misc/typescript-babel-only/__snapshots__/jsfmt.spec.js.snap
index d5e87823f..cb21485d5 100644
--- a/tests/misc/typescript-babel-only/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/misc/typescript-babel-only/__snapshots__/jsfmt.spec.js.snap
@@ -62,6 +62,27 @@ class Bar {
 ================================================================================
 `;
 
+exports[`ts-4.2-abstract-constructor-type.ts format 1`] = `
+====================================options=====================================
+parsers: ["babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+// typescript-estree does not support abstract constructor type yet
+type T = abstract new () => void;
+type T = abstract    new () => void;
+type T = abstract
+  new () => void;
+
+=====================================output=====================================
+// typescript-estree does not support abstract constructor type yet
+type T = abstract new () => void;
+type T = abstract new () => void;
+type T = abstract new () => void;
+
+================================================================================
+`;
+
 exports[`tuple-labeled-ts.ts format 1`] = `
 ====================================options=====================================
 parsers: ["babel-ts"]
diff --git a/tests/misc/typescript-babel-only/ts-4.2-abstract-constructor-type.ts b/tests/misc/typescript-babel-only/ts-4.2-abstract-constructor-type.ts
new file mode 100644
index 000000000..841d8252c
--- /dev/null
+++ b/tests/misc/typescript-babel-only/ts-4.2-abstract-constructor-type.ts
@@ -0,0 +1,5 @@
+// typescript-estree does not support abstract constructor type yet
+type T = abstract new () => void;
+type T = abstract    new () => void;
+type T = abstract
+  new () => void;