Tactically employed in battle as a four-gun field battery, Japanese combat forces used the weapon during the invasion of Manchuria, Soviet-Japanese Border Wars and the Second Sino-Japanese War.
They found the Type 88 gun's high velocity rounds were extremely effective anti-tank weapon when fired horizontally.
The weapon was the standard Japanese mobile antiaircraft artillery weapon and used against Allied forces more than any other artillery weapon.

During both the Battle of Iwo Jima and the Battle of Okinawa it was used effectively with armor-piercing rounds against American M4 Sherman tanks and as a coastal-defense gun.
Against armor, it had the advantage of a 360 degree  traverse, but it was not easily moved and so it was less effective when fired from ambush against tanks.

Towards the end of the war many of the Type 88s were withdrawn from front line combat service and sent back to the home islands, to help reinforce  Japan's homeland defenses against Allied air raids and to prepare for the threat of Allied invasion.
It was assigned to civil defense units in major Japanese cities, but its maximum effective vertical range of 7,250 metres (23,790 ft) meant it was ineffective against the USAAF B-29 Superfortress bombers, which could fly as high as 9,710 metres (31,860 ft).
Some guns were also assigned to coastal defense batteries.

A variant was experimentally fitted to a Ki-109 bomber in an attempt to shoot down the B-29 Superfortress bombers at high altitude.
Tactically employed in battle as a four-gun field battery, Japanese combat forces used the weapon during the invasion of Manchuria, Soviet-Japanese Border Wars and the Second Sino-Japanese War. They found the Type 88 gun's high velocity rounds were extremely effective anti-tank weapon when fired horizontally. The weapon was the standard Japanese mobile antiaircraft artillery weapon and used against Allied forces more than any other artillery weapon.
During both the Battle of Iwo Jima and the Battle of Okinawa it was used effectively with armor-piercing rounds against American M4 Sherman tanks and as a coastal-defense gun. Against armor, it had the advantage of a 360 degree  traverse, but it was not easily moved and so it was less effective when fired from ambush against tanks.
Towards the end of the war many of the Type 88s were withdrawn from front line combat service and sent back to the home islands, to help reinforce  Japan's homeland defenses against Allied air raids and to prepare for the threat of Allied invasion. It was assigned to civil defense units in major Japanese cities, but its maximum effective vertical range of 7,250 metres (23,790 ft) meant it was ineffective against the USAAF B-29 Superfortress bombers, which could fly as high as 9,710 metres (31,860 ft). Some guns were also assigned to coastal defense batteries.
A variant was experimentally fitted to a Ki-109 bomber in an attempt to shoot down the B-29 Superfortress bombers at high altitude.
Type 88 75 mm AA gun