Sunsmile is a Chinese musical instrument manufacturer based in Shandong Province, producing a broad catalog of stringed instruments under its own name as well as for OEM clients. The company's lineup spans electric guitars, electric basses, acoustic and classical guitars, resonator guitars, ukuleles, mandolins, banjos, and solid-state practice amplifiers, along with cases, gig bags, and parts. Its electric models cover familiar shapes — single-cut, double-cut, offset, and superstrat-style bodies — typically built with bolt-on construction and aimed at the budget and entry-level market.

The brand markets itself as a high-volume guitar producer in China and supplies finished instruments and components through wholesale and direct channels including Amazon and Reverb. Discussion on forums such as The Gear Page and SevenString.org tends to frame Sunsmile as an inexpensive alternative to mainstream brands rather than a boutique builder, with most attention focused on its affordable electric guitars and bass models. The company also offers guitar kits and parts to the DIY market through related entities operating under the Liaocheng Sunsmile name.

Sunsmile has 3 products cataloged on Equipboard, including Solid Body Electric Guitars.